Fon-fon !, Brazilian tango published in 1913 by Casa Arthur Napoleão (Sampaio, Araújo & Cia.), Dedicated to "the distinguished friend Mario Baptista Martins Barata". The title refers to the popular magazine Fon-fon !, which circulated between 1907 and 1958 (the design around the first page title in older editions of the score is precisely the logo of the magazine, present in its first editions). It is one of Nazareth's most popular pieces, both in Brazil and abroad. This arrangement is based on the original. Advanced

Souvenir de Porto Rico, Op. 31, is a musical composition for piano by American composer Louis Moreau Gottschalk written from 1857 during a tour in Puerto Rico. Dedicated to the Dutch piano virtuoso and salon music composer Ernest Henry Lubeck, and published in Mainz circa 1860 with the subtitle of Marche des Gibaros, it is based on the Christmas folk song 'Si me dan pasteles, denmelos calientes', performed by local peasants known as Jíbaros.

The piece makes use of Latin-American and Afro-American melodies and rhythms almost fifty years before early ragtime and jazz would popularize its use.Souvenir de Porto Rico was written in the last trimester of 1857, when of Gottschalk's stay at the sugar plantation of English-born Mr. Cornelius Cartwright, in Plazuela. At the time, Gottschalk was on vacation with singer Adelina Patti and her father. He would decide not to leave Puerto Rico, but instead remain there for weeks. During this period he composed a number of additional pieces after the local musical styles.Gottschalk would say about the setting where he composed the piece: "[I was] perched upon the edge of a crater, [and] my cabin overlooked the whole country. Every evening I moved my piano out upon the terrace, and played for myself alone, everything that the scene opened up before me inspired. It was there that I composed 'Marche des Gibaros.'.