My school is currently rehearsing Mahler’s 4th symphony. In the first movement Mahler writes out something that is very ambiguous. 3 measures after rehearsal 15 our part is written in tenor clef but over this line he writes “Klingt eine octave tiefer” which translates to “Sounds an octave lower”. Should this be interpreted as the bass section playing what is written one octave lower? Or is it commonly played in our actual tenor clef range? Our school’s bass teacher was unsure which to choose as is our orchestra’s conductor. Thanks for reading.