F(OS)S for Learning a Musical Instrument ?
Anonymous Musician asks: "Recently I took up learning to play the violin (at age 37) and it is great fun. I found two little software tools to be of good help: Wired Metronome (Windows binary, free to download) to keep a steady beat, and TS-AudioToMIDI (Windows binary, shareware, 30 days free trial), using a microphone and built-in sound-card to detect in real time the note I am playing (I admit, sometimes it is more like a noise) and have it displayed on a piano keyboard to check and train my tuning.
What tools, freeware or FOSS, are you using to assist you with learning to play an instrument?"
The OnLine Guitar Archive (OLGA) is a great resource for getting melodies and chord arrangements for zillions of songs. Although I play guitar, I find it very valuable for keyboard as well, and I suspect you would for violin.
Also check out Audacity (audio editor) - runs on Windows, Linux and Mac