Vocalise-Etude Vocalise-étude (en forme de Habanera) ?was originally written for voice and is one more example of a French composers fascination with the music of Spain. Ravel in particular was fond of this Habanera style, having included it in several of his works. This music also may have been composed as a study for students at the Paris Conservatory. Ravel includes virtuosic runs and portamento effects which Mr. Sauer has effectively used in his fine arrangement for Tenor Trombone. The work of about 3 minutes in length is appropriate for advanced performers.