Originalus: In Bach's Studio. Grade 5. letter C on seconds, thirds and especially sixths. David Liebman. Saxophone sheet music. 1946-.
Vertimas: Be Bacho Studio. Davidas Liebman. Saksofonas natos. Be Bacho Studio, kurį sudaro David Liebmanu. 1946 -. Saxophone Quartet ". Satb. 5 klasė.