Woodshedding

Woodshedding is a practice studio that helps you break down any song and master it piece by piece. Upload a track — AI separates each instrument and auto-detects the song's BPM & key. Solo, mute, loop, slow down, speed up, and repeat until it clicks.

"Woodshedding" is jazz slang from the 1920s. In the pre-air-conditioned American South — doors and windows wide open — musicians would sneak off to the woodshed out back so they could practice without getting yelled at. The term first showed up in print in the Spirit Lake Beacon (Iowa, 1927). Louis Armstrong used it in his 1936 autobiography Swing That Music (p. 71): "We used to practice together, 'wood-shed' as we say" — from the old-time tradition of heading to the woodshed to work on new songs. It became shorthand for locking yourself away and grinding until you nail it, a kind of "paying your dues" in jazz culture.

I actually stumbled on this word while searching for slang about hard practice — felt like the perfect name.

Hey — I'm a frontend engineer who likes to unwind at home noodling on bass.

I usually split songs into stems so I can listen to the bass line on its own, or mute it and jam along with the rest of the band. But sometimes the parts I want to practice are spread all over the song, and most tools only let you set one loop range — switching back and forth gets old fast.

So, driven by my own frustrations, I built this tool — and I hope it helps others who need it too.

Import your music and start practicing! If you have any thoughts or suggestions after using it, I'd love to hear from you :)

— Gua

Questions, feedback, or feature requests? I'd love to hear from you: