In what pursuit is solmization useful or important?

Panpipe musicians often play melodies using the technique of ________, so the players

can avoid becoming dizzy from constantly blowing on the pipes.

Fill in the blank(s) with the appropriate word(s).

What innovative feature of Gothic cathedrals is an external support that counters the outward thrust of the nave vaults?

A. Apsidal chapel B. Flying buttresses C. Triforium D. Tribune