It is true that heat and acid can cause proteins to denature, which means that they lose their 3-dimensional shape. A cooked egg white that becomes opaque and solid is an example. When milk is treated with acid, the protein casein curdles into a solid and the whey separates, still liquid.
The noun TOCCATA has 1 sense: 1. a baroque musical composition (usually for a keyboard instrument) with full chords and rapid elaborate runs in a rhythmically free style. Familiarity information: TOCCATA used as a noun is very rare.
recitative (rÄsËÄ­tÉtÄvË) [ key ], musical declamation for solo voice, used in opera and oratorio for dialogue and for narration.e Nozze di Figaro by Mozart employs much recitative of this sort. It was used also in cantata and oratorio. In the 18th cent. greater importance was assumed by the recitativo accompagnato or stromentato, accompanied by the string section or the full orchestra, in which the music was more strictly measured.