A commission is where the artist gets paid to create art and a patronage is when the artist gets financial support through other people to provide these artworks.
Answer:The wavelength of a transverse wave can be measured as the distance between two adjacent crests.
Explanation:
The best statement to identify Joe Zawinul's key contribution to the world of jazz is that A) He pioneered the use of electronic piano and synthesizers. He introduced the electronic piano in the mainstream music industry and made the synthesizer a very striking musical instrument.