I think I mentioned looking at that book in this thread already. It looks like a run through of fundamental music theory concepts. I'm looking for something more like a workbook that bridges theory to making music and playing (more of a theory and composition book that has musical theory exercises). I already have an understanding of fundamental music theory. Where I am at now is, I have been playing for years, have played and gigged in some local classic rock cover bands as well as some heavier non-cover bands when I was younger, am a blues based player (mostly garden variety chords and pentatonic licks and jamming), can pick out tunes and lines by ear outside of more harmonically complex jazz based stuff, have studied fundamental music theory along the way (the same as what looks to be covered in that book), have written some songs and jam pieces along the way. But I have put very little music theory to practical use over the years. Of what I have learned, the most useful has been knowing the spellings of keys and Major and minor chord scales (often helpful for picking out chord progressions in songs and writing songs), relative Major/minor scales, and pentatonics. My ear often leads me away from basic Major and minor chords for chords that are a little more colorful but my progressions most often have little underlying melodic movement, I stray very little from pentatonics in lead playing only minimally playing diatonically, almost never utilize arpeggios.