Rataplan! A musical name

Quite often people ask the meaning and the origin of our name. Rataplan, first of all, is a drum roll!
Music, often protagonist of our job, once again helps us and clarifies without any further word.
Listen to this opera song from the opera La Forza del Destino (G.Verdi): http://www.youtube.com/watch?v=qYiKHKA2JuI&feature=related

... and don't forget our name anymore!