According to Wikipedia: In music, ornaments or embellishments are musical flourishes that are not necessary to carry the overall line of the melody (or harmony), but serve instead to decorate or "ornament" that line.
Many ornaments are performed as "fast notes" around a central note.
Unlike most other instruments, the bagpipe creates a single continuous tone with a consistent volume, from the start to the finish of a musical piece. In bagpipe music, embellishments provide accents to emphasize rhythmic patterns, separate notes, and add levels of expression and dynamics to the overall melody.
The next order of embellishments would create three "syllables" to a note so that it’s sound becomes something like "cha-ga-dah". These would include grips, taorluaths, some birls (especially G gracenote birls) and D throws. There are other embellishments, less common, that create even more syllables for a note, such as hornpipe triplets and crunluaths.