anyone who plays baritone should know that baritone is actually a version of many instruments like baritone saxophone. a baritone is actually a euphonium and if you were to tell any composer that you played baritone, they would never hire you to play their song. even though baritone is technically a separate instrument, they are basically the same only one can go lower. no one plays baritone professionally above middle school band.
better you learn this now