According to professor tilson's lecture on baroque architecture, established the forms and spirit of baroque architecture in england with his masterpiece, st. paul's cathedral

Sir Christopher Wren

Explanation:

Sir Christopher Wren is one of the most highly acclaimed English architects in history. His masterpiece is St. Paul's Cathedral, which he rebuilt in a Baroque style. The cathedral was rebuilt after the Great Fire of 1666. Moreover, Wren was tasked with rebuilding another 52 churches, as well as several secular buildings. In addition to this, Wren was also an anatomist, astronomer, geometer, mathematician and physicist.

true! hope i !

a chromatic scale uses the twelve tones of the octave, while a regular scale only uses eight, or seven different notes (as the first note is played twice)