Musical instrument been used to play four notes of a diatonic scale. Researchers estimate the flute's age at between 43,400 and 67,000 years, making it the oldest known musical instrument and the only musical instrument associated with the Neanderthal culture. However, some archaeologists and ethnomusicologists dispute the flute's status as a musical instrument. German archaeologists have found mammoth bone and swan bone flutes dating back to 30,000 to 37,000 years old in the Swabian Alps. The flutes were made in the Upper Paleolithic age, and are more commonly accepted as being the oldest known musical instruments. Archaeological evidence of musical instruments was
Kay Musical Instrument Company skilled craftsmen using special ordered machinery. They even had a hot stamping machine that could emboss the trademark KAY cursive script. After the dissolve of Kay/Valco in 1968, the Engelhardt-Link company bought the upright bass and cello lines at the asset auction in 1969, and continue to produce the same instrument lines till today. Manufactured in Elk Grove Village, Illinois, Engelhardt basses and cellos are sturdy instruments, widely used by students and touring professionals. The "ES9 Swingmaster" bass (formerly the Kay "S9 Swingmaster"), is highly thought-of by jazz, swing, and bluegrass musicians. Kay Musical Instrument Company Kay Musical Instrument Company