Range of a minor 9th for the tenor and a minor 16th for the bass (baritone?). Not a problem for me (bass-baritone), but...

Otherwise, quite nice.

Thank you for sharing this composition. For the exact right two voices, it seems like it would work.

I'm also bass-baritone, admittedly leaning bass, but the E and F will definitely have me singing with a slightly different tonality, though not undoable.

It isn't obvious to me why the E-d-c-b in measure 7 (bass part) can't be an octave lower (though admittedly then there is a slightly awkward jump up of a 7th -- doesn't bother me).

Similarly, it isn't obvious (to me, a non-composer) why the passage in measures 17-20 (perhaps until [edit: but not including] the G#) cannot be an octave lower.

Bass m.7-8: E-d-c-b-A-G down an octave (leaving a min 7th leap from G to F).
Bass m.17-21, down an octave through first three notes of m.21: a-c-b.

These result in a bass part with a range of a major 11th (low G to middle C).

It's the high F (and perhaps the E) that are a bit high for most basses. Pitched down a whole step might make it more accessible (low G to high E-flat).

After the wise thoughts of Charles Giffen and the practical comments of my own son Charles and Michael Dickson I've retooled this piece, in the bass part, to accommodate a larger group of basses.