What is the lyre keys of doe a deer?

The "lyre keys" of "Do, a Deer" refer to the musical notes associated with the song from the musical "The Sound of Music." The song uses solfège syllables to represent different notes: "Do" (C), "Re" (D), "Mi" (E), "Fa" (F), "Sol" (G), "La" (A), and "Ti" (B). Each syllable corresponds to a specific pitch, forming the foundation of the musical scale and helping to teach basic Music Theory.