- It means playing too loudly on an instrument.
Let's not play blastissimo, boys and girls.
Dictionary of american slang with examples. .
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Dynamics (music) — In music, dynamics normally refers to the volume of a sound or note, but can also refer to every aspect of the execution of a given piece, either stylistic (staccato, legato etc.) or functional (velocity). The term is also applied to the written… … Wikipedia