furioso
ˌfjʊərɪˈəʊzəʊ
ˌfjʊərɪˈəʊsəʊ
adverb
(especially as a direction) furiously and wildly.
the fourth variation, which is to be played furioso, is especially good
adjective
played in a furious and wild manner.
he uses a Baroque guitar for some of the furioso pieces