JoshLoi
Does this programming make it impossible to play a song without patterned chord changes over Jammr? If a vocalist were singing such alongside a guitarist then it seems to me that the guitarist would hear the lyrics sung at the wrong time.

It depends on the structure of the music. A 12-bar blues repeats and will work.

jammr is designed for improvising together to a chord progression. You can also rehearse sections of songs.

It is not suited for performing entire songs.

Cross-post alert… Sorry, this may make more sense here…

We're just figuring it out, too, but as near as I can tell, here are the 4 key rules:
1. Play to the metronome (ideally, your drummer uses it as a click)
2. If you are using mics, use headphones; no exceptions…
3. If your audio device lets you do a local mix of your input & what's returned from Jammr, de-select ‘play back my audio’ in Jammr's audio settings for a much cleaner experience; listen to yourself local
4. If you are using Zoom (or similar) in parallel, MUTE YOUR ZOOM!

We are NOT accustomed to playing to a click, so it's been a struggle. A little better every week…

If you're lucky to be playing with a drummer then only they need to enable the metronome - everyone else can follow the drums.

If you don't have a human drummer, you can use drum loops or a drum machine instead of jammr's metronome click.

As long as the drum tempo matches jammr's BPM setting you can play in sync.