Adagio slow and leisurely (one of four movements called by Italian words that described the character of their different speeds).
Concerto A concerto (from the Italian: concerto, plural concerti or, often, the anglicised form concertos) as a musical work is a composition usually in three parts or movements, in which (usually) one solo instrument (for instance, a piano or violin) is accompanied by an orchestra
Scherzo A lively movement, commonly in 3/4 time, introduced as a replacement for a minuet in pieces with multiple movements.