What is the primary sonic feature of the "Aquarium" segment in "Carnival of the Animals"?

The primary sonic feature of the "Aquarium" segment in "Carnival of the Animals" is characterized by soft and fluid sounds, which create a sense of an underwater environment. The use of muted colors in the melodies, along with the gentle flow of dynamics, conveys a serene and dreamy atmosphere that is typical of aquatic imagery.

In this piece, the soft sounds effectively evoke the feeling of water and the creatures that inhabit it, emphasizing a lightness and elegance that might suggest the movement of fish or the ripple of water. This contrasts with the more pronounced dynamics or rhythms found in other sections of the suite, which may exhibit lively or heavily accented musical phrases. The tranquil nature of the sounds in "Aquarium" plays a vital role in setting apart this segment, making it emblematic of its water-themed inspiration.