Analyzed Frequencies and Pitches of sounds on web page http://homepages.bw.edu/~phoekje/olympiad/index.html Flute1 533 Hz (C5) Xylophone1 3873 Hz (B7) Psaltery 389 Hz (G4) Chimes1 693 Hz (F5) Flute2 390 Hz (G4) Xylophone2 366 Hz (F#4) Guitar 126 Hz (B2) Water Glass 1038 Hz (C6) Flute3 401 Hz (G4) Xylophone3 392 Hz (G4) Violin 382 Hz (G4)