. If the song was sped up too much or was sped up using low quality means, it would raise the pitch of the recording, thus apparently sharpening the guitar's tuning. The song is about a section of the novel For Whom the Bell Tolls by Ernest Hemingway, in which International Brigades soldiers of the Spanish Civil War attempt to escape the fascists with their stolen horses and are killed by enemy aircraft on a hill on which they are surrounded. It also appeared on Metallica's live 1999 Album S&M ...