Discovered today that apparently I can read tenor clef on bass recorder. A student was playing a sonata by Barsanti (and told me she had become a fan, yay a covert!), and I was accompanying by playing the bass line on a basset. Suddenly one slow movement was all in tenor clef, eek.
But while playing it I realized that of course I play tenor clef on bassoon all the time. Now bassoon fingerings in tenor register aren't the same as recorder fingerings, but apparently I have also learned to associate the notes with their names by now. Hadn't realized that had happened!
Only problem was that every now and then the bass line would go too low and i'd have the feeling that I didn't have enough recorder in my hands to keep playing. Suddenly transposing an octave up in tenor clef is clearly one step too far for now!