Access to 1600+ high quality accompaniments in the tempo, key & instrumentation of your choice: arias, art songs, vocalises, sonatas, concerti, Suzuki repertoire & more.

Available in 175 countries and regions, 4D Accompanist (formerly known as 4D Music Pocket Player) has peaked to #1 in music category on the App Store in Taiwan, Hong Kong, Ukraine, Slovenia, and among top #25 in Canada, the United States, and Mainland China.

■ Enjoy high quality tracks played by world class pianists
■ Add over 1600 accompaniment tracks to the playlist
■ Use AirDrop and Share features to import a custom track in MIDI, MUSICXML, or other formats*
■ Stream via FaceTime Share My Screen option in a group call
■ Change speed and transposition of the playback instantly
■ Pause at a fermata, and jump ahead in recitative and cadenza
■ Listen back to a chord being detected in realtime
■ Switch between harpsichord, guitar, organ, and piano seamlessly
■ Bookmark favorite speed and spot
■ Subscribe to flexible plans for unlimited usage**

*Visit 4D resource for additional file format compatibility, such as the experimental audio to midi converter for WAV/MP3 to MIDI, and the 4D Jam that records in JSON format:

**Users who purchased this app prior to the 3.0.0 release will enjoy a lifetime unlimited usage without a subscription.

Subscription Details:
■ Weekly Plan for 7 days, Monthly Plan for 1 month, or Yearly Plan for 1 year: to gain uninterrupted usage of the app
■ Payment will be charged to iTunes Account at confirmation of purchase
■ Subscription automatically renews unless auto-renew is turned off at least 24-hours before the end of the current period
■ Account will be charged for renewal within 24-hours prior to the end of the current period, and identify the cost of the renewal
■ Subscriptions may be managed by the user and auto-renewal may be turned off by going to the user's Account Settings after purchase
■ Any unused portion of a free trial period, if offered, will be forfeited when the user purchases a subscription to that publication, where applicable

For subscription plan and billing questions, contact Apple Support.

For other inquiries, such as repertoire request, email

Disclaimer: All pianists who have kindly contributed to the sample tracks agree to grant app users a perpetual, irrevocable, sublicensable and royalty-free license under all copyrights, trademarks, patents, trade secrets, privacy and publicity rights and other intellectual property rights, to use, exploit, reproduce, make available, edit, distribute, display, exhibit, modify, adapt, photograph, record, create derivative works, and otherwise use and permit others to use their works throughout the universe in any and all media now known or hereafter devised, in all languages and in all versions, without liability, obligation, restriction, condition, compensation, credit or attribution, for any purpose whatsoever.

Terms of Use:

Privacy Policy:

What’s New

Version 3.5.2

Fixes and Improvements:
- Batti, batti, o bel Masetto by Mozart

Ratings and Reviews

5.0 out of 5
8 Ratings

8 Ratings

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This is a dream come true!!! Thank you for this app, it works so well and is a pleasure to use. Is there any possibility of using the track in recording? Or exporting tracks ?

Developer Response ,

Thank you for the feedback. It's definitely possible to capture your screen's audio and video while the piano part is playing. For example, the link below offers a good reference. Hope this helps!

pianivo ,

GREAT(independant volume control ?)

Excellent app, only wish you add independant volume control for left and right hands channels

Developer Response ,

Thank you! We will keep this in mind for future releases.

App Privacy

The developer, Lucas Tsun-Shiu Wong, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy.

Data Not Collected

The developer does not collect any data from this app.

Privacy practices may vary, for example, based on the features you use or your age. Learn More


  • Family Sharing

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

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