In what context might "quasi" be used?

The term "quasi" is often used in music to indicate similarity or resemblance to another style or character. For example, "quasi una fantasia" suggests that the music should be performed with a certain kind of freedom that's reminiscent of a fantasy, but not strictly within that form. In this case, it implies that the music should emulate the qualities of something else, giving the performer guidance on how to interpret the piece. This usage aligns perfectly with the idea of suggesting similarity.

In contrast, terms related to volume, mood, or tempo do not employ "quasi" in a way that encapsulates its meaning of resemblance. For example, dynamics (volume) would use specific terms like "forte" or "piano," while mood is suggested through expressive directions such as "dolce" or "espressivo." Tempo indications are typically conveyed through terms like "allegro" or "lento," thereby distinguishing these concepts from the notion of similarity that "quasi" expresses.