[vsratisj] Tenor and piano

Piano players, vocal tenors, and maybe a few others learn to read both treble and bass clef (octave treble clef in the case of the tenor part in some choral music).  It is a subtle bilingualism that they might not consider remarkable until they meet everyone else, people who sing or play any other instrument or part, who have difficulty reading the clef they are not used to.

There's probably something interesting going on inside the brain wherein the notes on the page are mapped to an intermediate representation first.