I'm imagining a pedal that can loop or save rhythms and chords played on a guitar. I also imagine a pedal for bass notes and/or a guitar that plays bass notes as well harmony like a keyboard. On the the other to have rhythms that I could manipulate as background it would be good, or to do loops with parts of drums from songs for example.
I am out of the new music technology any advice would be welcome. What are the best devices to do this?