The main title to Sergio Leone’s The Good, the Bad and the Ugly is built on a two-note motif evoking a coyote’s howl and assigns signature timbres to each character (e.g., flute, “arghilofono”/ocarina, human voices). Featuring whistling (Alessandro Alessandroni), electric guitar, trumpets, recorder, and choir, it became one of cinema’s most recognizable themes; the soundtrack spent over a year on the Billboard 200 (peaking at No. 4), and Hugo Montenegro’s 1967 cover turned the melody into a pop hit in the U.S. and U.K.