Music was my first love, and it will be my last, music of the future and music of the past, to live without my music would be impossible to do in this world of troubles my music pulls me through

The song you're singing is John Miles - Music Was My First Love.
http://www.lyricstime.com/john-miles...ve-lyrics.html

I actually knew this one, but sometimes it's worth using Google with the line of a lyric- as there are a lot of lyric web-pages out there if you're stuck.