FRANZ LISZT. Manuscrito musical autógrafo.- Século XIX (1845).- 1 f. 27x21 cm. Franz Liszt (1811-1886), Hungarian composer, pianist, conductor and teacher, born in Doborján (today in Austria), considered one of the most important composers of the 19th and late Romanticism centuries. Autograph musical manuscript containing the score (1 f.) of an untitled waltz, with only the epigraph indicating its tempo: "Allegretto". At the end, the autograph signature: Of. Lszt. Provenance: this manuscript was owned by Pedro Batalha Reis (1906-1966), author of the work "Liszt na sua passagem por Lisboa em 1845" (Lisboa, 1945) ("Liszt in his visit to Lisbon in 1845" (Lisbon, 1945)). In his work, the author states that "Allegretto duma valsa inédita" (Allegretto of an unpublished waltz) was one of three works composed by Liszt during his stay in Lisbon between January 15th and February 25th, 1845, where he performed in nine concerts and three private recitals. He further informs that the "Allegretto" belonged to his grandfather António Batalha Reis (1838-1917), and he does not know how he acquired it. Minor faults in the margins not affecting the handwritten text; slight browning and slight stains.