Grand Piano and Keyboard
Your full 88-key grand piano with 109 instruments, scales, chords, and a metronome — all on your phone or tablet.
Grand Piano and Keyboard is more than a virtual piano app — it is a complete musical companion built for real musicians. Whether you are a beginner learning scales, a composer working on new ideas, or a performer warming up before a show, Grand Piano gives you the authentic sound and feel of a professional instrument directly from your Android device.
At its core is a true 88-key grand piano layout spanning 7 full octaves, with multi-touch support for expressive chord playing and an ultra-fast response time that keeps up with demanding passages. Choose from 109 built-in instruments — from acoustic grand piano and strings to guitar, synth, trumpet, and more — all powered by an authentic polyphonic sound engine with rich, realistic audio.
Beyond raw sound, the app is packed with practical tools for study and performance: over 120 heptatonic scales, diatonic chord mode, a transpose function spanning a full octave in either direction, four reverb types, sustain pedal effect, and a fully customizable metronome. Multiple key label modes (letter names, Solfège, or numbers) make the keyboard equally accessible to classical students and self-taught players.
The flexible design scales to any screen resolution, making it equally usable on a phone in portrait mode or a tablet laid flat on a music stand.
Features
88-Key Piano Keyboard
Full grand piano layout spanning 7 octaves. Supports multi-touch for simultaneous note and chord playing. Adjustable key width so the keyboard fits the player's hand size and screen size.
109 Built-In Instruments
Includes piano, organ, strings, guitar, synth, trumpet, bass, violin, saxophone, xylophone, music box, harmonica, bell, and many more voices all powered by a polyphonic sound engine.
Key Label Modes
Three options: A-B-C (standard letter names), Do-Re-Mi (Solfège), and 1-2-3 (numbered). Labels appear directly on the keyboard keys.
Scale Library (120+ Scales)
Over 120 heptatonic scales including major, natural minor, harmonic minor, melodic minor, pentatonic, blues, and a wide range of exotic/modal scales. Scales are displayed directly on the keyboard.
Chord Mode
Displays diatonic triads and 7th chords for any selected scale. Chords are shown relative to the current scale degree.
Transpose Function
Shifts the keyboard pitch up or down by any interval within ±12 semitones without changing the physical key layout.
Metronome
Built-in metronome with customizable tempo and sound options.
Reverb Effects (4 Types)
Four reverb presets add spatial depth and realism to the piano sound.
Sustain Pedal Effect
Simulates piano sustain pedal behaviour, letting notes ring beyond the key release.
Phone and Tablet Support
Flexible layout adapts to all screen resolutions and orientations.
Who is this for?
- ✓ Beginner pianists learning note positions, scales, and basic chords
- ✓ Music students practicing scales and diatonic harmony
- ✓ Composers who need a portable instrument to try ideas on the go
- ✓ Performers looking for a reliable warm-up or rehearsal tool when a real piano is unavailable
- ✓ Music teachers demonstrating scales, intervals, and chord voicings to students
- ✓ Self-taught musicians exploring different instrument sounds
- ✓ Anyone who wants a full piano with theory tools in a single free app
How musicians use it
Practicing Scales Before a Lesson
A student opens the app on their phone five minutes before their piano lesson. They select the D major scale from the scale library, enable Do-Re-Mi key labels, and run through the scale up and down twice using the metronome at 60 BPM to lock in the fingering before their teacher arrives.
Composer Sketching a Chord Progression
A songwriter is on a bus and an idea strikes. They open Grand Piano, switch to chord mode in the key of F minor, and cycle through the diatonic 7th chords to find a progression that sounds right. They hum the melody over it and save a voice memo on their phone.
Demonstrating Instrument Families in a Classroom
A music teacher projects their tablet onto a classroom screen. They switch between the violin, trumpet, and organ voices to demonstrate how the same melody sounds in different instrument families, while students follow the note names using the A-B-C key labels.
Stage Warm-Up Without a Piano
A pianist is backstage before a performance. There is no keyboard available in the green room. They open Grand Piano on their tablet, turn on reverb for a more realistic sound, and run through their warm-up scales and arpeggios with the sustain pedal effect enabled.
Other apps by PG App Studio
Music Theory Companion
Your all-in-one music theory toolbox: scales, chords, ear training, voice leading, and more — for every instrument.
Stage Metronome with Setlist
The stage-ready metronome built for live musicians — with setlist management, precise timing, and a display you can read from across the room.