Digital audio workstation. It's used for putting together music tracks, but... the scope of that is huge. It's probably best to find some demo/tutorial on YouTube to understand it. Even the ultra compressed bitwig6 announcement should give you an idea https://youtu.be/xJF7i3x46Ec
Digital Audio Workstation, basically all those programs with multiple tracks per music channel, tons of effects and plugins, with MIDI input to be controlled by any kind of musical devices, even macros can be assigned to specific chords or melody snippets.
Digital Audio Workstation, which is a fancy name for a kind of app where you can make a song on your computer. Whether that's a recording of an instrument or voice, or a digital instrument playing from MIDI signal (piano, synth, anything), or recorded samples from various sources, you can put all that together however you want, including all sorts of effects (lotta plugins).
