The mark is a sound. The mark consists of a chorus singing "ONE EIGHT HUNDRED MY LEMON," with the word "ONE" sang as an F4 eighth note, "EIGHT" sang as E4 and G4 quarter notes sang concurrently, the "HUN-" sang as a pair of tied D4, F4, and A4 eight notes sang concurrently, the "-DRED" sang as a pair of tied A3, D4, F4, A4, and C5 dotted-quarter notes sang concurrently, followed by an eighth rest, the "MY" sang as D2, A3, C4, E4, and G4 half notes sang concurrently, the "LE-" sang as G2, A3, C4, D4, and F4 eighth notes sang concurrently, and the "-MON" sang as C2, G3, C4, and E4 eighth notes sang concurrently.