Unlock successful!

You can now enjoy unlimited access to the latest web-based flavors of 4D Piano. 

Interested in an additional accessory?

Check out the 4D Piano Pocket Player exclusively for iPhones and iPads on the App Store for only 99 cents!


4D Piano Pocket Player is the most perfect and easiest solution for bending any piano track!


Pause or skip ahead:

Pause at a fermata! Skip to the next note or chord feature is exclusively available here. These functions should serve you well when you need the next chord to align with you.


Play chord:

Listen back to a chord being detected in realtime.


Make it accelerate or slow down:

Up to 25% to 250% of the original speed. Buckle up and enjoy a smooth ride in this magical time machine!


Transpose it:

Up to 12 semitones up or down. When used in conjunction with the loop back function, this is ideal for warmup exercises!


Bookmark it:

Let the app remember your favorite speed or spot intuitively, and let the music loop and snap back within a tap.


Open it:

Both MIDI and 4D JSON formats are recognized in custom playback and can be fetched through your personal iPhone or iPad directory. These are extremely light-weight, in comparison to wav's and mp3's. Standard MIDI files can be obtained from a wide range of softwares and platforms. 4D JSON files can be generated or recorded through the 4D Piano Enterprise, which comes with a low latency rehearsal environment with video chat and lightning fast piano transmission at www.4dpianoapp.com


Select anything at anytime:

This app comes with hundreds of performance-ready sample tracks (i.e., the entire Handel's Messiah, opera arias, piano and instrumental concertos, and string method pieces).