Carillon strike the inside of the bells, allowing the performer on the bells, or "carillonneur/carillonist" to vary the intensity of the note according to the force applied to the key. Although unusual, real carillons have occasionally been fitted to theatre organs (instead of the metal bars or chimes more often used in simulation), such as the Christie organ installed at the Regal Cinema, Marble Arch, in London. A carillon-like instrument with fewer than 23 bells is called a chime. The carillon is the second heaviest of all extant musical instruments, only ranking behind the largest pipe organs. The heaviest carillon in
Necessity Is a Mother Tour Necessity Is a Mother Tour The Necessity Is a Mother Tour was a concert tour by rock band ZZ Top. Launched in the wake of the cancelled Aerosmith/ZZ Top Tour, the tour's concerts were performed in theatres and arenas from September through November 2009. Band members Billy Gibbons and Dusty Hill dressed in black biker jackets, along with similar hats and boots. The Necessity Is a Mother Tour consisted of three legs and 28 shows. Out of the 28 shows performed, each had a similar set list, with 20-23 songs performed. The concerts usually began with techno music played through