Shop best sequencer

Sponsored
About our ads
$1,299.99
Sequential Take 5 Desktop Analog Synthesizer
zZounds
$1,299.99
Sequential Take 5 Desktop Analog Synthesizer
zZounds
$1,799.00
Elektron Octatrack MKII 8-Track Performance Sampler 8-Track Sampling Workstation/Sequencer With Real-Time Pitch Shifting And Time Stretching - Black
Sweetwater
2
$1,799.00
Elektron Octatrack MKII 8-Track Performance Sampler 8-Track Sampling Workstation/Sequencer With Real-Time Pitch Shifting And Time Stretching - Black
Sweetwater
$649.00
1010Music Blackbox Studio - Compact Sampling Studio Standalone Sampler/Sequencer, With 2 Audio Inputs, MIDI I/O, Clock I/O, USB, And Headphone Output
Sweetwater
$649.00
1010Music Blackbox Studio - Compact Sampling Studio Standalone Sampler/Sequencer, With 2 Audio Inputs, MIDI I/O, Clock I/O, USB, And Headphone Output
Sweetwater
$459.00
Behringer Lmdrum Hybrid Sampling Drum Machine Drum Machine With 109 Sounds, 64-Step Sequencer, Dual-Mode Filter, And Wave Designer
Sweetwater
1
$459.00
Behringer Lmdrum Hybrid Sampling Drum Machine Drum Machine With 109 Sounds, 64-Step Sequencer, Dual-Mode Filter, And Wave Designer
Sweetwater
$219.00
Behringer BQ-10 Analog Sequencer 24-Step Analog Sequencer With 8 Play Modes, Per-Channel Portamento Control, Per-Step Trigger Outputs, And MIDI
Sweetwater
$219.00
Behringer BQ-10 Analog Sequencer 24-Step Analog Sequencer With 8 Play Modes, Per-Channel Portamento Control, Per-Step Trigger Outputs, And MIDI
Sweetwater
$92.90
Behringer Clocked Sequential Control Module 1027 8-Step Sequencer Eurorack Module 32HP Eurorack 8-Step Sequencer Module With 3 Pattern Channels,
Sweetwater
3
$92.90
Behringer Clocked Sequential Control Module 1027 8-Step Sequencer Eurorack Module 32HP Eurorack 8-Step Sequencer Module With 3 Pattern Channels,
Sweetwater
$1,349.10
Akai Professional MPC Key 61 Standalone Sampler And Sequencer Hybrid Standalone Hardware DAW With Touch-Screen, Velocity/Pressure-Sensitive Pads,
Sweetwater
$1,349.10
Akai Professional MPC Key 61 Standalone Sampler And Sequencer Hybrid Standalone Hardware DAW With Touch-Screen, Velocity/Pressure-Sensitive Pads,
Sweetwater
$244.04
$249.00
Arturia Beatstep Pro Controller & Sequencer Sequencer, Drum Sequencer, And MIDI Controller With MIDI, USB, CV/Gate, And DIN Sync Control Capabilities
Sweetwater
20
$244.04
$249.00
Arturia Beatstep Pro Controller & Sequencer Sequencer, Drum Sequencer, And MIDI Controller With MIDI, USB, CV/Gate, And DIN Sync Control Capabilities
Sweetwater
$1,099.00
$1,149.00
Elektron Digitone II 16-Track Polyphonic Digital Synthesizer 16-Voice Desktop Digital Synthesizer Module With 16 X Dual-Function Synth/MIDI Track, 4
Sweetwater
4
$1,099.00
$1,149.00
Elektron Digitone II 16-Track Polyphonic Digital Synthesizer 16-Voice Desktop Digital Synthesizer Module With 16 X Dual-Function Synth/MIDI Track, 4
Sweetwater
$179.00
Behringer 960 Sequential Controller Analog Step Sequencer Eurorack Module 56HP Eurorack Analog 3-Channel 8-Step Sequencer Module
Sweetwater
6
$179.00
Behringer 960 Sequential Controller Analog Step Sequencer Eurorack Module 56HP Eurorack Analog 3-Channel 8-Step Sequencer Module
Sweetwater
$163.10
Electro-Harmonix 8 Step Program Analog Expression/CV Sequencer Pedal 8-Step Analog Expression/CV Sequencer With Tap Tempo, MIDI Clock Sync, Multiple
Sweetwater
3
$163.10
Electro-Harmonix 8 Step Program Analog Expression/CV Sequencer Pedal 8-Step Analog Expression/CV Sequencer With Tap Tempo, MIDI Clock Sync, Multiple
Sweetwater
$149.99
Korg Volca Sample 2 Digital Sample Sequencer Compact Sample Sequencer With 100 Onboard Sounds, Extensive Onboard Control, Step Sequencing,
Sweetwater
12
$149.99
Korg Volca Sample 2 Digital Sample Sequencer Compact Sample Sequencer With 100 Onboard Sounds, Extensive Onboard Control, Step Sequencing,
Sweetwater
$94.05
$99.00
Arturia Beatstep Pad Controller And CV/Gate Sequencer USB/MIDI/CV Controller And 16-Step Sequencer, With 16 Velocity/Pressure Sensitive Pads, 16
Sweetwater
438
$94.05
$99.00
Arturia Beatstep Pad Controller And CV/Gate Sequencer USB/MIDI/CV Controller And 16-Step Sequencer, With 16 Velocity/Pressure Sensitive Pads, 16
Sweetwater
$1,149.00
Elektron Digitakt II 16-Track Stereo Drum Computer And Sampler 16-Track Stereo Drum Machine, Sampler, And Groove Sequencer With Variable Track
Sweetwater
5
$1,149.00
Elektron Digitakt II 16-Track Stereo Drum Computer And Sampler 16-Track Stereo Drum Machine, Sampler, And Groove Sequencer With Variable Track
Sweetwater
$269.00
Image Line FL Studio Signature Edition Sequencing And Music Production Software With Audio Recording, Virtual Instruments, Plug-In Processors, And
Sweetwater
$269.00
Image Line FL Studio Signature Edition Sequencing And Music Production Software With Audio Recording, Virtual Instruments, Plug-In Processors, And
Sweetwater
$399.00
Make Noise 0-CTRL Semi-Modular Analog Desktop Controller And Sequencer Analog CV/Gate Controller And Step Sequencer, With 8 Touch/Pressure
Sweetwater
4
$399.00
Make Noise 0-CTRL Semi-Modular Analog Desktop Controller And Sequencer Analog CV/Gate Controller And Step Sequencer, With 8 Touch/Pressure
Sweetwater
$169.00
Behringer RS-9 Rhythm Sequencer Eurorack Module 52HP Rhythm Sequencer Eurorack Module With 10 Drum Channels, 64 Steps Per Sequence, 10
Sweetwater
2
$169.00
Behringer RS-9 Rhythm Sequencer Eurorack Module 52HP Rhythm Sequencer Eurorack Module With 10 Drum Channels, 64 Steps Per Sequence, 10
Sweetwater
$239.00
Intellijel Steppy 4-Track 64-Step Programmable Gate Sequencer 8HP Eurorack Programmable Gate Sequencer Module, With 4-Track/64-Step Sequencer
Sweetwater
$239.00
Intellijel Steppy 4-Track 64-Step Programmable Gate Sequencer 8HP Eurorack Programmable Gate Sequencer Module, With 4-Track/64-Step Sequencer
Sweetwater
$49.00
Audiomodern Riffer Creative MIDI Sequencer Plug-In Virtual Instruments MIDI Sequencer Plug-In With Polyphonic Mode, Density Function, And
Sweetwater
$49.00
Audiomodern Riffer Creative MIDI Sequencer Plug-In Virtual Instruments MIDI Sequencer Plug-In With Polyphonic Mode, Density Function, And
Sweetwater
$349.00
Blipblox Mytracks Sequencer, Sampler, And Drum Machine Sequencer/Sampler/Drum Machine Synthesizer With 5 Audio Tracks, 48 Upgradable Sounds, 12 Drum
Sweetwater
$349.00
Blipblox Mytracks Sequencer, Sampler, And Drum Machine Sequencer/Sampler/Drum Machine Synthesizer With 5 Audio Tracks, 48 Upgradable Sounds, 12 Drum
Sweetwater
$149.00
Behringer TD-3-SB Analog Bass Line Synthesizer With VCO, VCF, 16-Step Sequencer, Distortion Effects And 16-Voice Poly Chain
Amazon.com
50
Free shipping
$149.00
Behringer TD-3-SB Analog Bass Line Synthesizer With VCO, VCF, 16-Step Sequencer, Distortion Effects And 16-Voice Poly Chain
Amazon.com
$199.00
Intellijel Steppy 1U 4-Track 64-Step Programmable Gate Sequencer 28HP X 1U, 4-Track, 64-Step Programmable Gate Sequencer Eurorack Module
Sweetwater
$199.00
Intellijel Steppy 1U 4-Track 64-Step Programmable Gate Sequencer 28HP X 1U, 4-Track, 64-Step Programmable Gate Sequencer Eurorack Module
Sweetwater
$385.00
Noise Engineering Mimetic Digitwolis 4-Channel CV Sequencer Eurorack Module - Black 10HP Eurorack Configurable Sequencer Module With Modulation,
Sweetwater
$385.00
Noise Engineering Mimetic Digitwolis 4-Channel CV Sequencer Eurorack Module - Black 10HP Eurorack Configurable Sequencer Module With Modulation,
Sweetwater
$399.99
Cre8audio Boom Chick Analog Drum Machine 40HP, 5-Voice Drum Machine With Analog Circuitry, 6-Ch 64-Step Sequencer, Live Mode, Variable Probability,
Sweetwater
$399.99
Cre8audio Boom Chick Analog Drum Machine 40HP, 5-Voice Drum Machine With Analog Circuitry, 6-Ch 64-Step Sequencer, Live Mode, Variable Probability,
Sweetwater
$378.33
Juice Goose CQ 2200 4-Outlet Power Sequencer 4-Outlet Power Sequencer With 2 Sequence Groups
Sweetwater
1
$378.33
Juice Goose CQ 2200 4-Outlet Power Sequencer 4-Outlet Power Sequencer With 2 Sequence Groups
Sweetwater
$599.99
$699.99
Korg Wavestate Mk II Module Rackmountable Desktop Wave Sequencing Synthesizer 4U Rackmountable Wave Sequencing Synthesizer Desktop Module With
Sweetwater
2
14% off
$599.99
$699.99
Korg Wavestate Mk II Module Rackmountable Desktop Wave Sequencing Synthesizer 4U Rackmountable Wave Sequencing Synthesizer Desktop Module With
Sweetwater
$349.00
Elektron Model:Samples 6-Track Sample Based Groovebox 6-Track Sampler/Sequencer, With 1GB Sample Storage, Dedicated Per-Function Controls, And MIDI
Sweetwater
21
$349.00
Elektron Model:Samples 6-Track Sample Based Groovebox 6-Track Sampler/Sequencer, With 1GB Sample Storage, Dedicated Per-Function Controls, And MIDI
Sweetwater
$1,999.00
Elektron Analog Four MKII 4-Voice Analog Synthesizer With Sequencer 4-Voice Tabletop Analog Synthesizer Module With Fully Analog Signal Path,
Sweetwater
7
$1,999.00
Elektron Analog Four MKII 4-Voice Analog Synthesizer With Sequencer 4-Voice Tabletop Analog Synthesizer Module With Fully Analog Signal Path,
Sweetwater
$2,499.99
Sequential Trigon-6 Desktop Analog Synthesizer
zZounds
3
$2,499.99
Sequential Trigon-6 Desktop Analog Synthesizer
zZounds
$749.99
Novation 61SL Mkiii 61-Key Keyboard Controller With Sequencer 61-Key Keyboard Controller With Semi-Weighted Keys, Internal 8-Track Sequencer,
Sweetwater
25
$749.99
Novation 61SL Mkiii 61-Key Keyboard Controller With Sequencer 61-Key Keyboard Controller With Semi-Weighted Keys, Internal 8-Track Sequencer,
Sweetwater
$2,899.00
Akai Professional MPC XL Standalone Music Production Center Multimode Groovebox With 16 Mpce 3D Performance Pads, Step Sequencer, Sampler,
Sweetwater
406
$2,899.00
Akai Professional MPC XL Standalone Music Production Center Multimode Groovebox With 16 Mpce 3D Performance Pads, Step Sequencer, Sampler,
Sweetwater
$189.00
Behringer Crave Analog Synthesizer With Sequencer Semi-Modular Analog Synthesizer Module, With 18 X 14 Patch Matrix, Arpeggiator, And 32-Step
Sweetwater
366
$189.00
Behringer Crave Analog Synthesizer With Sequencer Semi-Modular Analog Synthesizer Module, With 18 X 14 Patch Matrix, Arpeggiator, And 32-Step
Sweetwater
$506.69
Juice Goose CQ 1520 7-Outlet Power Sequencer 7-Outlet Rackmountable Power Sequencer With 3 Sequence Groups And 1 Unswitched Outlet
Sweetwater
$506.69
Juice Goose CQ 1520 7-Outlet Power Sequencer 7-Outlet Rackmountable Power Sequencer With 3 Sequence Groups And 1 Unswitched Outlet
Sweetwater
$110.00
8-Step CV Sequencer
Etsy
1K+
$110.00
8-Step CV Sequencer
Etsy
$329.99
Korg Sq-64 Polyphonic Sequencer
Walmart
102
Free shipping
$329.99
Korg Sq-64 Polyphonic Sequencer
Walmart
$189.99
$415.99
Furman Merit M-8S Power Sequencer
B&H Photo-Video-Pro A
1
Free shipping
54% off
$189.99
$415.99
Furman Merit M-8S Power Sequencer
B&H Photo-Video-Pro A
The 10 Best Sequencers for Any Studio Budget
12:36
The 10 Best Sequencers for Any Studio Budget
170.4K viewsFeb 26, 2020
landr.com
Most powerful current midi sequencer (hardware or software)
Most powerful current midi sequencer (hardware or software)
Mar 2, 2022
gearspace.com
10 Best Hardware Sequencers For The Money 2024 - Read Before You Buy!
10 Best Hardware Sequencers For The Money 2024 - Read Before Yo…
Jul 30, 2019
musicproductionnerds.com
Sequencer: Reviews, Pricing, Features in 2026
Sequencer: Reviews, Pricing, Features in 2026
3 viewsMay 6, 2014
softwaresuggest.com
Is This The Best Hardware Sequencer EVER??!!
Is This The Best Hardware Sequencer EVER??!!
Jul 29, 2019
matrixsynth.com
Best MIDI Sequencer Software: A Comprehensive Review
11:28
Best MIDI Sequencer Software: A Comprehensive Review
1.9K viewsNov 24, 2024
YouTubeMusical Instrument
The 5 best new sequencers and controllers of 2021, as voted by you
The 5 best new sequencers and controllers of 2021, as voted by you
Dec 21, 2021
musicradar.com
5:10
10 Best Hardware MIDI Sequencers 2020
18.2K viewsApr 19, 2020
YouTubeEzvid Wiki
20:56
Keystep PRO review: midi keyboard & sequencer GREAT for DAWLES…
102.5K viewsApr 14, 2020
YouTubeBoBeats
9:13
25 Best FREE Step Sequencer VST Plugins For 2026!
Sep 20, 2019
hiphopmakers.com
15:09
Choosing a MIDI Sequencer For Your Beats & Patterns | Reverb
77.9K viewsAug 19, 2019
YouTubeReverb
What is a sequencer in music? How to use it in your productions | Nati…
Nov 28, 2022
native-instruments.com
13:53
Midicake ARP Review - Powerful Hardware MIDI Arpeggiator & Seq…
8.2K viewsAug 25, 2023
YouTubeStephen McLeod
11:54
Top 5 Best Audio Mixing Software in 2025 – Elevate Your Sound!
640 views9 months ago
YouTubeSounds Sense
Step Sequencer Benefits and The 3 Best DAWs Loaded With One [Upd…
Dec 19, 2020
midimighty.com
26:59
BeatStep Pro melodic sequencers
430.8K viewsJul 7, 2015
YouTubeArturia
10 Best Sequencer VST Plugins 2024 [Ultimate Guide]
Aug 25, 2018
musicproductionnerds.com
4:36
The 5 best sequencers
36 views6 months ago
YouTubetkDEzone
Top-Tier Sequencer
3 months ago
gumroad.com
macProVideo.com
Oct 11, 2018
macprovideo.com
12:14
The Best Sequencer for Music Production (2024)
3.8K viewsApr 12, 2024
YouTubeIsotonik Studios
41:03
Eurorack Modular Sequencer Comparison - which Sequencer d…
56.5K viewsJan 26, 2021
YouTubeMaik Schott Sounds
6:33
Hands-on: Arturia BeatStep Pro step sequencer/controller
152.3K viewsAug 18, 2015
YouTubeMusicRadar
15:36
I tried loads of MIDI sequencers. One is king (by far).
84.4K viewsFeb 3, 2025
YouTubeAP Mastering
10:36
Korg SQ-64 Review - Best Sequencer under $300?
28.5K viewsJan 5, 2023
YouTubeBraintree56
6:03
Arturia Beatstep Pro and Ableton Live
54.6K viewsMay 24, 2017
YouTubeSeed To Stage
6:39
Sequencing With the Korg Monologue // The Best Beginner S…
20K viewsMay 14, 2021
YouTubeRYAN MAKES BEATS
8:16
Ableton Live 12 SQ Sequencer | Ableton's Best Sequencer?
13K viewsNov 8, 2024
YouTubeFearless Beatz
2:45
Akai MPC 2000 Original - Basic Sequencer/Tap Tempo Functions
106.6K viewsMay 12, 2011
YouTubeThe Daydream Sound
See more videos
Static thumbnail place holder

Shop best sequencer

Sponsored
About our ads
$1,299.99
Sequential Take 5 Desktop Analog Synthesizer
zZounds
$1,299.99
Sequential Take 5 Desktop Analog Synthesizer
zZounds
$1,799.00
Elektron Octatrack MKII 8-Track Performance Sampler 8-Track Sampling Workstation/Sequencer With Real-Time Pitch Shifting And Time Stretching - Black
Sweetwater
2
$1,799.00
Elektron Octatrack MKII 8-Track Performance Sampler 8-Track Sampling Workstation/Sequencer With Real-Time Pitch Shifting And Time Stretching - Black
Sweetwater
$649.00
1010Music Blackbox Studio - Compact Sampling Studio Standalone Sampler/Sequencer, With 2 Audio Inputs, MIDI I/O, Clock I/O, USB, And Headphone Output
Sweetwater
$649.00
1010Music Blackbox Studio - Compact Sampling Studio Standalone Sampler/Sequencer, With 2 Audio Inputs, MIDI I/O, Clock I/O, USB, And Headphone Output
Sweetwater
$459.00
Behringer Lmdrum Hybrid Sampling Drum Machine Drum Machine With 109 Sounds, 64-Step Sequencer, Dual-Mode Filter, And Wave Designer
Sweetwater
1
$459.00
Behringer Lmdrum Hybrid Sampling Drum Machine Drum Machine With 109 Sounds, 64-Step Sequencer, Dual-Mode Filter, And Wave Designer
Sweetwater
$219.00
Behringer BQ-10 Analog Sequencer 24-Step Analog Sequencer With 8 Play Modes, Per-Channel Portamento Control, Per-Step Trigger Outputs, And MIDI
Sweetwater
$219.00
Behringer BQ-10 Analog Sequencer 24-Step Analog Sequencer With 8 Play Modes, Per-Channel Portamento Control, Per-Step Trigger Outputs, And MIDI
Sweetwater
$92.90
Behringer Clocked Sequential Control Module 1027 8-Step Sequencer Eurorack Module 32HP Eurorack 8-Step Sequencer Module With 3 Pattern Channels,
Sweetwater
3
$92.90
Behringer Clocked Sequential Control Module 1027 8-Step Sequencer Eurorack Module 32HP Eurorack 8-Step Sequencer Module With 3 Pattern Channels,
Sweetwater
$1,349.10
Akai Professional MPC Key 61 Standalone Sampler And Sequencer Hybrid Standalone Hardware DAW With Touch-Screen, Velocity/Pressure-Sensitive Pads,
Sweetwater
$1,349.10
Akai Professional MPC Key 61 Standalone Sampler And Sequencer Hybrid Standalone Hardware DAW With Touch-Screen, Velocity/Pressure-Sensitive Pads,
Sweetwater
$244.04
$249.00
Arturia Beatstep Pro Controller & Sequencer Sequencer, Drum Sequencer, And MIDI Controller With MIDI, USB, CV/Gate, And DIN Sync Control Capabilities
Sweetwater
20
$244.04
$249.00
Arturia Beatstep Pro Controller & Sequencer Sequencer, Drum Sequencer, And MIDI Controller With MIDI, USB, CV/Gate, And DIN Sync Control Capabilities
Sweetwater
$1,099.00
$1,149.00
Elektron Digitone II 16-Track Polyphonic Digital Synthesizer 16-Voice Desktop Digital Synthesizer Module With 16 X Dual-Function Synth/MIDI Track, 4
Sweetwater
4
$1,099.00
$1,149.00
Elektron Digitone II 16-Track Polyphonic Digital Synthesizer 16-Voice Desktop Digital Synthesizer Module With 16 X Dual-Function Synth/MIDI Track, 4
Sweetwater
$179.00
Behringer 960 Sequential Controller Analog Step Sequencer Eurorack Module 56HP Eurorack Analog 3-Channel 8-Step Sequencer Module
Sweetwater
6
$179.00
Behringer 960 Sequential Controller Analog Step Sequencer Eurorack Module 56HP Eurorack Analog 3-Channel 8-Step Sequencer Module
Sweetwater
$163.10
Electro-Harmonix 8 Step Program Analog Expression/CV Sequencer Pedal 8-Step Analog Expression/CV Sequencer With Tap Tempo, MIDI Clock Sync, Multiple
Sweetwater
3
$163.10
Electro-Harmonix 8 Step Program Analog Expression/CV Sequencer Pedal 8-Step Analog Expression/CV Sequencer With Tap Tempo, MIDI Clock Sync, Multiple
Sweetwater
$149.99
Korg Volca Sample 2 Digital Sample Sequencer Compact Sample Sequencer With 100 Onboard Sounds, Extensive Onboard Control, Step Sequencing,
Sweetwater
12
$149.99
Korg Volca Sample 2 Digital Sample Sequencer Compact Sample Sequencer With 100 Onboard Sounds, Extensive Onboard Control, Step Sequencing,
Sweetwater
$94.05
$99.00
Arturia Beatstep Pad Controller And CV/Gate Sequencer USB/MIDI/CV Controller And 16-Step Sequencer, With 16 Velocity/Pressure Sensitive Pads, 16
Sweetwater
438
$94.05
$99.00
Arturia Beatstep Pad Controller And CV/Gate Sequencer USB/MIDI/CV Controller And 16-Step Sequencer, With 16 Velocity/Pressure Sensitive Pads, 16
Sweetwater
$1,149.00
Elektron Digitakt II 16-Track Stereo Drum Computer And Sampler 16-Track Stereo Drum Machine, Sampler, And Groove Sequencer With Variable Track
Sweetwater
5
$1,149.00
Elektron Digitakt II 16-Track Stereo Drum Computer And Sampler 16-Track Stereo Drum Machine, Sampler, And Groove Sequencer With Variable Track
Sweetwater
$269.00
Image Line FL Studio Signature Edition Sequencing And Music Production Software With Audio Recording, Virtual Instruments, Plug-In Processors, And
Sweetwater
$269.00
Image Line FL Studio Signature Edition Sequencing And Music Production Software With Audio Recording, Virtual Instruments, Plug-In Processors, And
Sweetwater
$399.00
Make Noise 0-CTRL Semi-Modular Analog Desktop Controller And Sequencer Analog CV/Gate Controller And Step Sequencer, With 8 Touch/Pressure
Sweetwater
4
$399.00
Make Noise 0-CTRL Semi-Modular Analog Desktop Controller And Sequencer Analog CV/Gate Controller And Step Sequencer, With 8 Touch/Pressure
Sweetwater
$169.00
Behringer RS-9 Rhythm Sequencer Eurorack Module 52HP Rhythm Sequencer Eurorack Module With 10 Drum Channels, 64 Steps Per Sequence, 10
Sweetwater
2
$169.00
Behringer RS-9 Rhythm Sequencer Eurorack Module 52HP Rhythm Sequencer Eurorack Module With 10 Drum Channels, 64 Steps Per Sequence, 10
Sweetwater
$239.00
Intellijel Steppy 4-Track 64-Step Programmable Gate Sequencer 8HP Eurorack Programmable Gate Sequencer Module, With 4-Track/64-Step Sequencer
Sweetwater
$239.00
Intellijel Steppy 4-Track 64-Step Programmable Gate Sequencer 8HP Eurorack Programmable Gate Sequencer Module, With 4-Track/64-Step Sequencer
Sweetwater