Il Convegno by Amilcare Ponchielli (1834-1886). For Divertimento for Two Clarinets & Piano. This edition: Score & Parts. ...Great Showpiece...Ponchielli, a bandmaster in addition to being the composer of La Gioconda, wrote much music for winds. Little of it is known in this country.. Duration 12:00. Published by Trillenium Music Company (TR.962).