Thought I’d post a few sites I’ve run into that help to explain Modes and Keys and other theories musical:
- NOVA](http://www.geocities.com/novairishsession/modes/modes.html%22%3ENOVA) Irish Session - Irish Modes and the “D” Tin Whistle - by Jos H. Hindriks
- Teoria’s](http://www.teoria.com/books/books.htm%22%3ETeoria%27s) Books
- Sessioneer](http://www.sessioneer.com/default.asp%22%3ESessioneer) Web Site
- Michael](http://members.home.com/eskin/index.html%22%3EMichael) Eskin’s Home Page
- CelticMusic.com</A](http://www.celticmusic.com/magazine/tunes/modes/modal.pdf">CelticMusic.com</A)>
- Aspects](http://www.rogermillington.com/untempered.html%22%3EAspects) of even temperament as applied to Irish traditional music
- The](http://www.wfg.sneezy.org/%22%3EThe) Woodwind Fingering Guide: online fingering charts for flute, piccolo, recorder, clarinet, saxophone, oboe, bassoon, tin whistle, shakuhachi, sarrusophone, Irish Uilleann pipes
- Irish Traditional Music Index: Alan Ng’s Tunography (Tune Index)
Hope this helps you further to …