UnScramble this Word: h s u c o l g?

Questions

(It.) - Calm.?

- (1) A subordinate passage serving as a link to another more important one. (2) A sudden change of key not going through the normal procedures referred to as modulation.?

- The writing down or performing of music in a different key from the original. ?

- Instruments that produce different notes than those written in concert pitch.?

(Ger.) - Sad.?