Timpani, vibraphones and marimbas are used in concerts. In addition to marimbas, the company made vibraphones, xylophones, glockenspiels and chimes. The lyre sections consist of bell lyres, glockenspiels, as well as vibraphones and marimbas. Ludwig acquired the "Musser Mallet Company", a manufacturer of xylophones, marimbas and vibraphones, in 1965. Their product line eventually included vibraphones, xylophones, conga drums and many stands and fittings. However, around 1976, marimbas and vibraphones were also allowed. Like marimbas, professional vibraphones have bars of graduated width. Musically, it uses a lot of instruments; a string section, xylophones, vibraphones, organs and more. Gaye also utilized percussion instruments, such as box drums, glockenspiels, vibraphones, bongos, congas, and cabasas. Vibraphones are usually played with mallets. "Now" features horns and vibraphones; "Grizzly Creek Redwoods State Park" contains guitar and bass. The Musser company continues to manufacture vibraphones as part of the Ludwig Drum Company. Note the difference in the front resonator sets of the two vibraphones. Bergerault, of Ligueil, France also began manufacturing vibraphones in the 1930s.