4D Music Player

I bought this app a little over a year ago, and it’s my go to for aria practicing/recording. I love that you can slow or speed up the tempo, and you can change the key it’s in. I requested an aria that wasn’t on the app, and Dr. Wong emailed me back within two hours with the rep I needed! Highly recommend for any classical singer/musician!

I am really excited to use this with my cello students. The only thing I would like to see is a temp given before the star, could be a flash if not a count in. Would be helpful to also have the measure marked if you stop. But as someone who has very basic skills it’s nice to have the accompaniments of many of the pieces I teach.

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 ?