Musescore, Helps alot.

3 years ago, started work with musescore 1.x, provide piano part virtually for my violin students
practice at home, small event in hall, local competition.

Great addicts then, input many many violin with piano accompanied pieces by QWERTY and
49-Key Midi Keyboard.

now i could play Bastien basic books VERY SLOW (because reading bass clef very slow,
low accuracy, Left Hand and Right Hand NOT SO co-operated; but ABRSM 4th grade piano scales with correct fingering pattern VERY HIGH SPEED just 3 weeks, never had a any piano lesson,
surprise to myself.

Thanks to all Musescore people contributed here.

Already put some violin & piano & metronome to soundcloud,
pls feel free to visit.

https://soundcloud.com/violin-and-piano