In Kundera's perspective, music has transformed from a cherished form of art into a ubiquitous presence that overwhelms our daily lives. Unlike in the past when music was listened to out of genuine appreciation, it now surrounds us continuously, often when we least expect it. This omnipresence creates an environment where music loses its individual significance, becoming a disconnected and chaotic blend of various genres and styles.

The author's description highlights a critical loss: as music turns into noise, it gains anonymity and formlessness, making it difficult to discern its origins or meanings. This experience of "sewage-water music" implies a degradation of artistic value, suggesting that in our contemporary world, the beauty and depth of music are at risk of vanishing amid this overwhelming torrent of sound.