Easy way to get started in music would be to try out LMMS software for linux and windows.
weighted key piano is hard to beat for pleasure playing/learning.
Ableton Live Lite is a great way to get into recording your own tunes. you can usually get the lite version for free with hardware like ableton launchpad or piano’s.
http://www.projectguitar.com for building guitars
Michael Angelo Batio – for learning very fast metal riffs
country riff’s are neat to play