The book contains 44 tunes for DADGAD Guitar tuning. Check out samples from book: http: //osos.sweb.cz/Sarek-Guitar-and-Guitalele-preview.pdf Gregorian chant belongs to the oldest music being preserved in such scope till present; moreover it is still performed but also is one that mostly influenced the history and presence of music. For the reason it is important for guitalele players to meet this kind of music. The equipment for guitar players includes campanela style which is the best for Gregorian chant play. This style helps to induce a large cathedral reverb. Therefore, left hand fingering is written above tablatures. Try to keep it and have strings drone.