The Wholetone Scale, as the name implies, is made up exclusively from whole tones. Because of this there are only 2 distinct wholetone scales (i.e. scales with a unique collection notes) and then the various modes of those two scales: G Wholetone Scale = G A B C# D# F. C Wholetone Scale = C D E F# G# A#
What music uses the whole tone scale?
Claude Debussy, who had been influenced by Russians, along with other impressionist composers made extensive use of whole tone scales. Voiles, the second piece in Debussy's first book of Préludes, is almost entirely within one whole-tone scale.
How many types of whole tone scales are there?
Because of the way the whole tone scale is constructed, there are only two possible whole tone scales. I've written out the C and Db whole tone scales. The D, E, F#, Ab, and Bb whole tone scales are the same as the C whole tone scale. The Eb, F, G, A, and B whole tone scales are the same as the Db whole tone scale.