Show off your theory chops with my weekly challenge! You’ll find a new question here every Monday. Please comment to post your reply.
This week’s challenge:
This is from the first movement of Tchaikovsky’s 6th Symphony in B minor, Op. 74. What is the name of the non-harmonic tones with the red arrows? They’re in the trombone melody, beginning after the violins’ entrance.

Check back on Friday, February 11th to see if you’re right!
ANSWER for 2/7/22
This is an example of the appoggiatura, a word that literally means “to lean.” The indicated notes are dissonant non-harmonic tones that are approached by a leap, and then resolve by step in the opposite direction. Although they sometimes appear off the beat, they’re more commonly seen as an accented dissonance, right on the beat where they really demand your attention!
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Appoggiatura.
Appoggiatura. It is approached by leap and resolved by step, and happening on the beat.
You have leaped upon the correct answer!
Augmentation
Hi David, good guess, but augmentation refers either to the “stretching out” of rhythms, or the enlargement of intervals (an augmented 5th, for example) 🙂
Appoggiature
Right you are!