A few years ago I created a technique for live looping in Ableton Live. I wanted to record and stop recording a clip in the session view without using a bulky MIDI foot controller. So, I came up with the idea of modding a mouse by connecting a simple sustain pedal into the left button. This way I could keep playing my instrument with both hands and record to any clip that the mouse cursor was resting on.
I found that I could do lots of other things while continuing to play two handed, like start a scene, stop a clip, mute a track, etc. Usually I reserve setting up my modded mouse for shows, but it’s a very useful tool in the studio for capturing two handed keyboard parts, like the Rhodes in this segment from a new track.
Live Looped Studio Rhodes