The canon is contrapuntal compositional technique, which sounds more complicated than it really is. When you go through known canons, you will find it easy. Somebody starts singing, other joins later and sings the same melody. Altogether It sounds beautiful. I arranged nine world songs and two classical compositions. Where the canons had opportunity to start at multiple sies, I made more versions. In addition, each version is modified twice. The first modification is for two ukuleles but one can be replaced by another instrument (flute, concertina, ocarina etc.) This modification is suitable for beginners who are learning synchronization with another player. The second modification is for solo ukulele where two voices are played by one ukulele. This version is suitable for advanced players. They are learning the voice independence. Voices in the canons are crossed very often, sometime it is useful to look at arrangement for two ukuleles and analyze how the voice is kept. Lots of beautiful moments, whether you play alone or with a friend. London's burning; Frere Jacques; Vent Frais; Row, Row, Row Your Boat; Ah, Poor Bird; Hinei Mah Tov; Merrily, Merrily; Kaeru No Uta; Vyletela holubicka; Viva la musica; Dona Nobis Pacem. The are in the book songs without text. Check out samples from books: http: //osos.sweb.cz/preview-ukulele.pdf