Timpani, vibraphones and marimbas are used in concerts. He also composed a variation for six marimbas, called "Six Marimbas", in 1986. In addition to marimbas, the company made vibraphones, xylophones, glockenspiels and chimes. Some conjecture that African lamellophones were derived from xylophones and marimbas. Ludwig acquired the "Musser Mallet Company", a manufacturer of xylophones, marimbas and vibraphones, in 1965. The lyre sections consist of bell lyres, glockenspiels, as well as vibraphones and marimbas. It is used for making the bars of marimbas and xylophones. Like marimbas, professional vibraphones have bars of graduated width. However, around 1976, marimbas and vibraphones were also allowed. The predominate marimbas in "Wind Chimes" were replaced by organ and dissonant noise. Guest musicians contribute trumpets and marimbas to the album. Shona marimbas are diatonic and are made with F#'s and without. Traditional music here is played by bands of wind instruments and marimbas. It also features a high-strung Caribbean guitar sound, marimbas, and a heavy bass guitar.