1) As fast as possible 2) Extremely fast 3) Fast 4) Italian musical term 5) Italian tempo term 6) Musical term to an Italian 7) Musical term in Rome 8) Scored very quickly 9) Very soon, very quickly 10) Very very fast; above 200 bpm 
extremely quickly, as fast as possible
• (adv.) Very quickly; with great rapidity.
extremely quickly, as fast as possible
Pres·tis'si·mo adverb [ Italian , superl. of presto .] (Mus.) Very quickly; with great rapidity. 
In music, prestissimo means very quickly or with great rapidity.
extremely quickly, as fast as possible
[adj] - (of tempo) as fast as possible 2. [adv] - (music) extremely fast
As quickly as possible
adjective (of tempo) as fast as possible
as fast as possible
(a musical direction) in the most rapid tempo.