A clerestory - a bright or "clear" level or "story" - is an upper section of wall, most often in a church punctuated by windows. It is a powerful image for grasping this luminous new music from Jules Reidy. Light casts shadows, of course, and logics of shadowing, mirroring, and distorted reflection - of key importance for Reidy"s work as a whole - inform the sumptuous surfaces of Clerestory. "Shadow Symmetric" is a string quartet commissioned and performed by the JACK Quartet as part of their JACK Studio program. The piece makes simultaneous use of two pitch sets, beginning from the same starting point but expanded using different scaling to produce what Reidy describes as "two offset spectral layers." "Clerestory Windows" offers up a distorted mirror image of the string quartet, arranged as a series of episodes that each remake the material in their own way. It begins with an arrangement of the string quartet material for MIDI strings and voices, repositioning its rigorous harmonic exploration somewhere between the Lovely Music Ltd universe and a 90s RPG soundtrack. This episode derives from Reidy"s installation Inside, Crystals and Circuitry, held in Stockholm in 2025. The piece moves into a lyrical 12-string acoustic guitar air performed at the installation opening, before the strings from the first side reappear. From this emerge flickering arpeggios, achieved by arranging the string quartet material for the RMI, an early digital synthesizer. Clerestory is a meditation on fundamental dynamics of human experience: orientation and disorientation, the hazy borders the hazy borders between the material and the spiritual, and the instability of identity.