Who changed the Impressionist brushstroke to be more solid and rectangular according to a grid of vertical and horizontal shapes?

Which composition would have been used for an organ Mass?

a. Fiori musicali b. "Rosary" Sonatas c. L'estro armonico d. Missa Salisburgensis

Which of the following terms refers to the collection of all available pitches on the Guidonian hand, including present day diatonic pitches plus Bb?

a) hexachord b) mode c) gamut d) musica ficta