Tori No Uta - Musical Structure

Musical Structure

"Tori no Uta" is the longest track featured in Air, spanning 6:08 minutes, and is thus the longest track on all of the albums the song appeared on released by Key Sounds Label. "Tori no Uta" is a trance song in common time which begins in the B minor key and waits until the eighth measure for Lia to begin singing. The song is kept in B minor for the first verse, shifts to B major for the second, and again shifts to D-flat major for the third which continues into the first measure of the fourth verse where it shifts back to B minor for the rest of the verse. After a short break, the key goes back to B major and continues the same pattern as before. At the end of this sequence in verse seven, the first verse is repeated as the sole chorus in B minor. An instrumental coda is used to close the song which lasts for about one-sixth of the entire piece's length. The song's instrumentation primarily uses a synthesizer as a base, but does include a short piano sequence lasting for the first eight measures, along with piano accompaniment throughout the song. The song moves at 120 beats per minute, and Lia's vocal range spans almost two octaves from F-sharp₄ to D₆.