The Williams Piano app reveals the hidden effects and capabilities of your Legato III or Allegro III digital piano. Tailor effects like reverb, chorus, and tremolo for variations on the factory sounds. Split and layer the keyboard to create a full-sounding arrangement. The app also provides easy tuning and transposition access.

In addition, the Williams app plays a variety of drum and metronome patterns to help when practicing or songwriting. There's even a playlist of songs to jam along with, a MIDI recorder, and much more. Unlock the complete feature set of your Williams digital piano with our free app.

Note: MIDI recording feature requires Apple USB adapter.

What’s New

Version 1.2.1

Fixes some bugs we found when switching from Play Along to Jam Session.
Addressed some crashes found in the wild.

Ratings and Reviews

2.8 out of 5
18 Ratings

18 Ratings

The popers ,

Please add midi channel selection

Changing midi channel on the piano is awful. Would be a great addition to the app

whyiseverynicknametaken69 ,

Pretty cool but there are bugs

I mean it’s cool and it works all the features are good but the recording part gets buggy every time I try to rename a song I’ve recorded it just deletes and I can’t write anything

mdictyd ,

Won’t let me play music in my library

Tried several different ways and it simply will not recognize songs I’ve downloaded to my device. This was part of the reason I bought the legato iii. Sad.


Guitar Center, Inc.
205.2 MB

Requires iOS 11.4 or later. Compatible with iPhone, iPad, and iPod touch.



Age Rating


  • Family Sharing

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

More By This Developer

You May Also Like