Upper Neighbor Tone: Similar to a lower neighbor tone, but instead of being one step lower, it is one step higher than the main note.
Passing Tone: A passing tone occurs when there's an embellishing note between two main notes that are either above or below it. It creates smooth melodic motion.
Appogiatura: An appogiatura is a type of ornamentation where an accented non-chord tone is approached by a leap from a consonant chord tone and resolved by stepping in the opposite direction to another consonant chord tone.