High spacing holes. There are two overtone holes on the saxophone, also called octave holes and treble holes, and the sound holes connected by the little fingers of the saxophone are called treble holes. The saxophone was invented by Belgian adolphe sax (18 14- 1894) in 1840. Adolf was keen on making musical instruments and was good at playing clarinet and flute. His initial idea was to design a bass instrument for the orchestra. Ophicleide is flexible and can adapt to outdoor performances.