Listen to Sonata in B-Flat Major, K. 358/186c: III. Molto presto online. Sonata in B-Flat Major, K. 358/186c: III. Molto presto is an Instrumental language song and is sung by Viktoria Postnikova and Gennady Rozhdestvensky. Sonata in B-Flat Major, K. 358/186c: III. Molto presto, from the album Viktoria Postnikova & Gennady Rozhdestvensky. Piano Ensembles, was released in the year 2019. The duration of the song is 3:47. Download Instrumental songs online from JioSaavn.