The 1844 Treatise on Modern Instrumentation and Orchestration that signaled the recognition of orchestration as an art in itself was written by .

Hector Berlioz  

Explanation:

Hector Berlioz was born in France. He makes his career in medicine. He was passionate about music. He has been composed for a work. He was best known for his entrance in the field of music in his childhood.

He even learned how to learn flute and guitar. He got married to Smithson. He was also appointed as deputy librarian in France university. He works as a music critic. But soon he feels unhappy and frustrated because he was not spending much time in his composition.

a) they had recently endured the tyranny of the british king, parliament, and its royal

answer; depression and breathing related sleep disorder(independent);