Serious Performance in a Compact Cabinet

  • USB Memory
  • SMF
  • XGlite
  • GS
  • GM2
  • ism


Don't forget to check the movies. 
Many of jazz organ players typically use this kind of playing technique
Jazz Organ Playing Technique

AT-300 Version 1.20 Now Available!
You can assign the "Load Next" function to the [Manual] button via free download.

Serious Performance in a Compact Cabinet

With its space-saving design, classic roll-top cover, waterfall keys, and harmonic bars for authentic tone control, the AT-300 is the perfect choice for organ enthusiasts who want pro features with a smaller footprint. Equipped with 180 types of built-in musical instruments, plus 120 rhythms (each with four variations), the AT-300 puts a world of music at your fingertips. The built-in speaker box delivers a powerful, resonant sound that defies its size, while the backlit graphical LCD provides clear, concise control.

  • - Authentic organ design with a roll-top keyboard cover
  • - 180 types of built-in musical instruments; 120 rhythms, each with four variations
  • - Harmonic bars for authentic tone control
  • - 61-key lower waterfall keyboard and a damper pedal
  • - Speaker box delivers powerful, resonant sound
  • - Backlit graphical LCD for easy, clear navigation

Great world-class organ sounds in a single instrument

Superb built-in sound sets, sourced from world-famous pipe, theater, and jazz organs.

Harmonic bars provide interactive control

The AT-300 has harmonic bars, which provide instant access to a full palette of distinctive organ sounds. From 16-foot to 1-foot, different pipe lengths producing different pitches can be used in combination. Each foot length can be adjusted while playing as well.

Lower keyboard for extra expression

The AT-300 has a lower waterfall-style keyboard, which is ideal for glissando and other expressive organ-playing techniques. In addition to 61 onboard keys, the AT-300 provides a damper pedal for proper piano playing. Furthermore, the lower keyboard can be split into separate zones. Different instrument sounds can be assigned to up to three lower keyboard zones. This split function makes the lower keyboard equivalent to multiple keyboards!

Orchestral instrument sounds included

Strings, brass, and guitar — a wealth of superb musical-instrument samples are built in. True-to-life jazz -scat vocals and choir samples are also included.

Active Expression lets you add rich accents to your playing

Built-in Active Expression capabilities allow you to use the expression pedal to accent what you play. Sounds such as flute and brass, which tend to lose presence during forte playing can be realistically boosted. And, right down to the strength of bowing, you can make instruments such as violins really come to life. Active Expression lets you play more instruments with more feeling and authenticity.

Easy-to-use control panel based on traditional-organ familiarity

The design of every instrument in the AT-300 is faithful to the way traditional organs are played. The concept is to give you the same freedom, comfort, and familiarity while layering sounds and effects as you play in real time.

Onboard automatic accompaniment lets you play with world-class musicians

Swing, country, bossa nova.... With AT-300 you can play along with organic rhythms from around the world, recorded by professional drummers. The Arranger feature (automatic accompaniment) allows you to trigger rhythmic patterns from the lower keyboard, and giving you a taste of what it's like to play along with pro musicians.

USB for storage and audio-file enhancement

Plug in external USB memory*1 and you can save multiple sets of registration settings and music files, which can used while you are playing. (The format is compatible with data saved on previous MUSIC ATELIER instruments.) You can directly use data stored on floppy discs*2 by earlier models, or you can enjoy playback of commercial music data downloadedto a computer and transferred to USB memory. You can directly play CD audio discs as well.*3 The ability to interface with various types of recording media greatly expands your musical enjoyment.

*1 Sold separately. Roland-brand USB memory recommended.
*2 Requires use of separately sold FD-01A USB floppy disc drive.
*3 Requires use of separately sold USB-CD drive.

Enhanced entertainment capability

By plugging in external devices you can expand the entertainment capability of MUSIC ATELIER. You can listen to audio CDs*1 through the instrument's speakers and even play along. Using the Center Cancel feature, you can de-emphasize the vocals of pre-recorded music*2 and sing along with your favorite songs.

*1 For audio-CD playback, a standard USB CD drive is required.
*2 Depending on the music, it may not be possible to completely suppress the melody or vocals.

Upper: 49 keys (C3 to C7)
Lower: 61 keys (Waterfall keyboard, C2 to C7)
Pedal: 20 keys (C2 to G3)
Initial Touch: Upper, Lower (10 levels for each)
Sound Generator
Conforms to GENERAL MIDI Level 2, GENERAL MIDI System, GS and XGlite format
Max.Polyphony: 128
180 Voices (Included 8 Active Expression Voices)
Part: Upper, Lower, Solo, Pedal
Vintage Organ: Flute (with harmonic bars)
120 rhythms in 8 groups x 4 variations
User Rhythm: 99 rhythms
Arranger Function
Tempo, Arranger On/Off, Start/Stop, Sync Start, Intro/Ending, Intro Count Down, Break, Auto Fill In, Variation (4 variations), One Touch Program, Chord Intelligence, Leading Bass, Auto Standard Tempo
One Touch Program
120 rhythms x 4 variations
Drums/SFX Sets
12 Drum Sets + 1 SFX Set
Harmony Intelligence
12 types
Master Tuning
415.3 Hz to 466.2 Hz (0.1 Hz steps)
Key Transpose
-4 to +7 (in semitones)
Playback Transpose
-6 to +5 (in semitones)
Rotary Sound, RSS Reverb, Sustain, Glide
8 memories
Function: Load Next, File Edit
Tracks: 7 tracks (playback)
Note Storage: Approx. 40,000 notes
Song Length: Max. 999 measures
Tempo: Quarter note = 20--500
Resolution: 120 ticks per quarter note
Recording: Realtime (Replace)
Lyrics Display: Alphabet
File Storage
Media: USB memory, floppy disk (in the case of using optional USB floppy disk drive FD-01A)
Save Format: MUSIC ATELIER original format, SMF format 0
Songs: Max. 99 songs for each folder
Rated Power Output
30 W + 30 W
Full-range: 20 cm x 2 (with speaker box)
Graphic 128 x 64 dots backlit LCD
Pedals, Switches
Damper Pedal
Expression Pedal
Foot Switch: 2 pcs. (function assignable)
Audio Output Jacks (L/mono, R)
Audio Input Jacks (L/mono, R)
Phones Jacks (stereo) x 2
MIDI connectors (In, Out)
External Memory connector (USB Memory connector)
AC Inlet
Power Consumption
80 W
Simulated Dark Walnut
Music Rest
Power Cord
Knob Bolt x 2
Cord Hook
Owner's Manual
Voice & Rhythm Guide
Stereo Headphones
USB Memory (M-UF1G)
USB Floppy Disk Drive (FD-01A)
CD Drive Holder (DH-01)

Size and Weight (Total)

Width (W)
1,233 mm48-9/16 inches
Depth (D)
553 mm21-13/16 inches
Height (H)
1,172 mm46-3/16 inches
80.5 kg177 lbs. 8 oz.

All specifications and appearances are subject to change.


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