Both mandolin and guitar parts have TAB. Rosas was a Mexican composer and violinist who began his career as a street musician. After a visit to Cuba in 1894 he became very poorly and sadly died at the young age of 26. "Over the Waves" (Sobre las Olas) was published in Mexico in 1888 and is one of the most well known Latin American pieces. The waltz melody is nowadays played by many stylistically differing types of performing groups. The melody is very much associated with the music of funfairs, trapeze artists and fairground organs and has even featured in the MGM film "The Great Caruso." The TAB scores do seem a bit cluttered in their detail but once the music has been learnt players can refer to the notation copies. This improver level (second year players) movement in ternary ABA form is an ideal ensemble piece. The realisation plays back at 60 dotted half note (minim) beats to the minute and players need to communicate a one to the bar feel in their playing. Guitar accompaniments are available at tempi of (1) 60 (2) 58 and (3) 56 dotted half note (minim) beats to the minute.