RiffLoop
A practice player for learning guitar solos: loop a few bars, slow them down without changing the pitch, and play along. Free, in your browser.
Open a song from your device, drag across the waveform to box off the lick you're learning, and loop it. Pull the speed down and the pitch stays put, so a fast solo becomes something you can actually follow.
A count-in before each loop, a speed trainer that adds 5% every three loops until you're at full speed, and saved clips that remember their loop and speed. The practice list shows which licks still need work.
Runs in your browser on phone or computer. Your songs never leave your device. Splitting a track into parts (to mute the guitar) is planned for a later version.