Bel Canto Studies for Trumpet - Book & CD. This collection of Bel Canto Studies, edited by John Korak from various 19th Century vocal teachers, provides trumeters with a rich trove of music with which to improve their playing and musicianship, but the printed book is just the beginning. In addition to the book itself. the enclosed CD contains, in printable PDF files, all of the piano accompaniment for both Bb and C trumpets and suitable for the more advanced students, and More.