It is probable that the first musical instrument was the human voice itself, which can make a vast array of sounds, from singing, humming and whistling through to clicking, coughing and yawning. As for other musical instruments, in 2008 archaeologists discovered a bone flute in the Hohle Fels cave near Ulm, Germany. Considered to be about 35,000 years old, the five-holed flute has a V-shaped mouthpiece and is made from a vulture wing bone. The oldest known wooden pipes were discovered near Greystones, Ireland, in 2004. A wood-lined pit contained a group of six flutes made from yew wood, between 30 and 50 cm long, tapered at one end, but without any finger holes. They may once have been strapped together.