How do you read the music orchestra 御法度館? I would say "Gohattokan", but should the kanji 館 be considered as a suffix here, and therefore it should be read as "Kan"? Otherwise there are other readings for this kanji.
About the track name 1, Japanese Wikipedia put these furigana for 承知ノ介: しょうちのすけ. Therefore the reading gives "Gatten Shouchinosuke".
https://ja.wikipedia.org/wiki/%E3%82...C%AC2%E4%BD%9C