Unique and attractive double-sided 10.5 x 6.75 gold-trimmed album leaf, with lengthy AMQSs on either side by the revered French composers: on one side, Charles Gounod pens three bars, double staves, with tempo marking "Tres vite," signed below, "Ch. Gounod, 23 Juin 1876"; on the other, Ambroise Thomas pens twenty bars, double staves, with tempo marking "Allegretto," signed below, "Ambroise Thomas, 2 fevrier, 1877." In fine condition.