: I think this is the quickest and most fun way to learn an instrument. The app listens to you play and provides real-time feedback (wrong note, came in late). Also, you play along to real music (including drums, vocals) so it's not boring. You get scored on each exercise you complete (think Dance Dance Revolution) so it's easy to see you're actually making progress.
: Download the app TODAY and try the free version (one week free trial I think), and if you fall in love with it, buy the Black Friday deal (50% off one year premium membership) before it expires December 3rd.
From the Yousician Black Friday Deal Page:
Learn guitar, ukulele, bass, piano, or vocals
—or all of them! Get full access to lessons and songs for every instrument.
Enjoy an extensive selection of songs, exercises, and lessons. Updated regularly, there's always something new.
Improve your musical skills even faster! Practice as much as you want without interruptions.