iPhone Screenshots


DEMO Movie

The BAR1 is an only one-bar programmable rhythm machine.

The BAR1 has been developed for checking the rhythm pattern as easily as with a metronome. It is an easier tool for everyday practice than an overqualified creative tool such as a sequencer.
The programmable number of bars is only one (triple or quadruple measure). However, the machine enables the user to check complex rhythms such as simultaneous clave and triplet as well as simple clicking in place of a metronome.
The BAR1 is an ideal tool for all musicians who are not quite happy with a metronome but hesitate to use a regular rhythm machine or a sequencer, and its use is highly recommended.

A whole rhythm pattern programmed can be viewed on the score, which visually helps understand beat timing.

Input to the drum machine by switching grids enables the user to play straight and triplet simultaneously.

Also equipped are the tap tempo function for setting tempo by standard tap interval and the jam pad function for playing sounds of any instruments by tapping with rhythm pattern.

The rhythm patterns can be sent to other BAR1 users with an e-mail, not to mention saved in the library.

All the functions including widely placed tempo dials and notepad have been designed for a single-hand use as much as possible.


Programmable bars

Programmable beats
3/4, 4/4

Grid Resolution
16th, sextuplet

Tempo range
30 - 320BPM

7 steps from -3 to +3

Score mode
Solo/Mute per instrument

Instruments (11 in total)
Ride Cymbal, Crash Cymbal, Open Hihat, Close Hihat, High-Tom, Mid-Tom, Rim, Snare, Low-Tom, Bass, and Cowbell

Metronome Sound

Vibration function is equipped.

Tap tempo function is equipped.

User rhythm patterns can be saved in the library.

Sharing Rhythm Patterns:
The rhythm patterns can be sent by e-mail.
The data can be shared by iCloud.

What's New

Version 1.2.0

Support for iOS9.3.


Tsutomu Haruna
19.4 MB
Requires iOS 7.0 or later. Compatible with iPhone, iPad, and iPod touch.
English, Japanese
Age Rating
Rated 4+
©2015 Tom Harunatsu


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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