Featuring an FM tone generator, FM Essential is a synthesizer app for the iPhone and iPad that provides for real-time synth performances and also lets you edit voices.

[Spec]
-FM sound
・Tone Generator: FM
・Part: 1
・Polyphony: 16
・Preset Voice: 271
・Arpeggiator patterns: 64
・Chord pads: 20
・Scales: 25

-Drum Part
Tone Generator: Audio
Part: 1
Drum Pad: 16
Drum Pad Set: 3

Functions
Plug into MX!
-You can play full 271 voices and voice store function if you connect your iOS with Yamaha music synthesizer MX BK/BU series.

Effects/EQ edit
-You can adjust parameters to edit effects and equalization.

Ball controller
-Touch and drag in ball controller to modulate the sound by simultaneously changing multiple parameters based on the ball position.

Step sequencer
-We can store the ball position in the currently selected scene box.
Arpeggiator and chord pads
-You can play Arpeggiator and Chord pads in addition to keyboard with various scales.

What's MX BK/BU/WH series? Find more here:
http://jp.yamaha.com/products/music-production/synthesizers/mx_bk_bu/?mode=series

[Support]
-Compatible with Audio Bus、Audio Unit Extentions

-Compatible devices:
iPhone 5S, 6/6 plus, 6s/6s plus and SE, iPod touch 6th Generation or later, iPad Air 1st Generation or later, iPad mini 2nd Generation or later,iPad Pro