"Undefined" is an original ballad by Caity Gyorgy from her 2020 debut album No Bounds, featuring solos from bassist Thomas Hainbuch and guitarist Jocelyn Gould over the 32-bar ABAC form in D. Hainbuch's one-chorus acoustic bass solo at 93 BPM demonstrates the lyrical potential of the instrument in a ballad setting, his melodic lines emerging with vocal-like phrasing that suits the composition's introspective mood. Gould follows with one chorus of electric guitar at a slightly faster 98 BPM, her warm tone and sophisticated harmonic choices adding depth to the performance. The composition showcases Gyorgy's maturity as a songwriter, its title suggesting an openness to possibility that is reflected in the music's spacious, unhurried quality. The ballad tempo demands patience and tonal control from both soloists, and each responds with playing that prioritizes expression over technique. The track reveals a more contemplative side of Gyorgy's artistry, complementing the album's uptempo swingers with a moment of quiet reflection. The choice to feature bass and guitar rather than voice on the solo section demonstrates Gyorgy's generosity as a bandleader.