`The famous Trumpet Tune in D also incorrectly attributed to Purcell was taken from the semi-opera The Island Princess which was a joint musical production of Clarke and Daniel Purcell Henry Purcell`s younger brotherprobably leading to the confusion.` Their sources are Bette Matthews 2004 Wedding for All Seasons p. 119. Barnes & Noble Publishing 2004 and Cudworth C. & Zimmerman F. B. 1960. The trumpet voluntary. Music and Letters 41341348 see p.347.