In music, ornaments or embellishments are musical flourishes—typically, added notes—that are not essential to carry the overall line of the melody (or harmony), but serve instead to decorate or "ornament" that line (or harmony), provide added interest and variety, and give the performer the opportunity to add expressiveness to a song or piece. Many ornaments are performed as "fast notes" around a central, main note. There are many types of ornaments, ranging from the addition of a single, short grace note before a main note to the performance of a virtuosic and flamboyant trill. The amount of ornamentation in a piece of music can vary from quite extensive (it was often extensive in the Baroque period, from 1600 to 1750) to relatively little or even none. The word agrément is used specifically to indicate the French Baroque style of ornamentation. In the Baroque period, it was common for performers to improvise ornamentation on a given melodic line. A singer performing a da capo aria, for instance, would sing the melody relatively unornamented the first time and decorate it with additional flourishes and trills the second time. Similarly, a harpsichord player performing a simple melodic line was expected to be able to improvise harmonically and stylistically appropriate trills, mordents (upper or lower) and appoggiaturas. Ornamentation may also be indicated by the composer. A number of standard ornaments (described below) are indicated with standard symbols in music notation, while other ornamentations may be appended to the score in small notes, or simply written out normally as fully sized notes. Frequently, a composer will have his or her own vocabulary of ornaments, which will be explained in a preface, much like a code. A grace note is a note written in smaller type, with or without a slash through it, to indicate that its note value does not count as part of the total time value of the bar. Alternatively, the term may refer more generally to any of the small notes used to mark some other ornament (see below), or in association with some other ornament's indication (see below), regardless of the timing used in the execution.
Martin Alois Rohrmeier, Daniel Harasim
Michael Christoph Gastpar, Fernando Rosas de Andraca