Influential French composer (1803–1869) of such repertory staples as the programmatic Symphonie Fantastique, the opera Les Troyens, and the colorful “travelogue in tones” Harold in Italy. ALS in French, signed “H. Berlioz,” one page, 4 x 5.25, March 7 [no year]. Berlioz writes to Monsieur Delaporte. In full (translated): “I do not know if your rehearsal of my piece is still going to take place on Sunday, but I must warn you that it will be impossible for me to be present. Do try to hold it on the following Sunday….” Light scattered soiling, a few wrinkles, and small puncture at top left corner, otherwise fine condition. RRAuction COA.