http://harmonicahymns.homestead.com/ Harmonica Hymnbook Over 265 hymns tabulated for the harmonica with instructions for the beginner. http://members.tripod.com/~diatonic/HarpLayoutGenerator.html Harmonica Note Layout Program Javascript program lets you specify harp and/or music key, position, or scale type. Determines harp; note layout is displayed with the notes in the scale highlighted. Other options available. http://members.tripod.com/~diatonic The Diatonic Harmonica Reference Reference includes tips for blues harp, techniques, music theory, improvisation, overblows, gapping, tuning, prices, and tab. Over 50 pages of tips and techniques.