Gene Krupa in Calumet City, Illinois. In the 1930s, Krupa became the first endorser of Slingerland drums. At Krupa's urging, Slingerland developed tom-toms with tuneable top and bottom heads, which immediately became important elements of virtually every drummer's setup. Krupa developed and popularized many of the cymbal techniques that became standards. His collaboration with Avedis Zildjian developed the modern hi-hat cymbals and standardized the names and uses of the ride cymbal, crash cymbal, splash cymbal. He is also credited with helping to formulate the modern drum set, being one of the first jazz drummers (for that recording studio) to use a bass
Bolon (musical instrument) Bolon (musical instrument) The bolon is a traditional harp played in Mali, as well as Guinea. It was notably played in hunting ceremonies or before a battle, to rouse warriors' valor. It was also used by the Jola in Gambia for accompaniment for men's choruses. Among other string instruments played in Guinea, the bolon is the oldest. The bolon is a three-stringed instrument, constructed from a large calabash covered by unshaven goat skin, and a bow-shaped neck. When playing, it is placed between the legs with the strings facing the musician. In addition to plucking the strings, the musician also