This audio file is aptly titled "065405_Glass Singing 1". It is a unique compilation where the listener is taken on a sonic journey through the harmonious world of glass. The audio starts off with a soft, almost ethereal sound, reminiscent of the delicate tinkling of crystal glass. It then gradually transitions into a more intense, resonating singing tone, capturing the pure, magical effect that is produced when the rim of a glass is rubbed. The audio serves as a perfect sound effect, echoing the surreal medley of notes that can be created using just a glass.