8Tracks is great! Not only can people use it for audition purposes (singing along to a vocal-less track), they can customize it however they want.
Not sure of the notes? Listen to vocals only. But doing that makes you unsure when to come in? Turn everything on and reduce the % of everything but vocals; you’ll hear then during dead space.
Want to perform a duet but don’t have a partner? Turn off your person without losing the audio from the other singer. Same can be done for background vocals.
Found a piano arrangement? Play along, maybe even take out the original piano or just listen to that.
My only problem with 8Tracks is wondering how long it’ll take to update between Volumes. The soundtrack for Volume 4 already came out, months ago. When will 8Tracks get songs like Armed and Ready, Like Morning Follows Night, Home, This Life is Mine, and more?