The difference between PMAs and LMAs
What is a PMA? What is an LMA?
These are two terms used just for the purpose of specifying whether you want an app you can “play music” with or one that you can “listen to music” with.
A PMA is a “play-music app.” You play music (for example, you play a piano on the screen) on a PMA.
An LMA is a “listen-music app.” You listen to music (like you push play and listen to a tune you want to hear) with this kind of app.