Harmonics on instrument - the haze of tone colour
On every acoustic instrument, when a string, an air column, or even a material vibrates, it does not just produce the frequency is played (the fundamental) but also the sequence of frequencies as the series of integers multiple of a fundamental. A note is played also means a series of notes are above sounding weak above. If we focus on playing around the harmonics, we can get a kind of hazy sound contrast to the solid fundamentals that we usually play.
On string instruments, harmonic is a quite standard technique. But on woodwind, it is a technique that has not been used widely. The hazy sound is very special and deserves to be heard more. These two pieces are stunning.
The piece by Wil Offermans is the only piece I found used the harmonic extensively. Ravel and Toru Takemitsu have some examples of it but are not prominent. Thus, I improved based on the harmonic technique, to explore the technique more. Video is below.
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