About this app
The Williams Piano app reveals the hidden effects and capabilities of your Legato III, Legato IV, Allegro III, Allegro IV, Overture III, Rhapsody III, Symphony Concert, or Symphony Grand II 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. Unlock the complete feature set of your Williams digital piano with our free app.
Latest release
What’s New
fixed known bug.
Audience growth
Ratings growth
Baseline captured. Growth appears after the crawler observes a changed rating count.
Momentum comes from crawler snapshots for the tracked storefront. “Viral growth signal” means unusually fast recent rating gains; it is an indicator, not download data.
Price tracking
Price intelligence
First snapshot captured. The trend line starts after the next crawler price observation.
- First observed Aug 11, 2026 · 4:39 PM Free
Screenshots
