A single-instrument weather forecast issued at 13:42 by a tuner’s logger for the inside of a 1962 Yamaha U1 upright. The page reads as a real institutional forecast — bordered advisory banner, current conditions block, an eight-hour hourly trace of interior relative humidity and soundboard moisture content, a pitch-deviation chart with shaded confidence band — but every term is rigorous to piano interior physics. Soundboard moisture rises 0.4% per hour; projected A4 deviation at the 19:30 curtain is +3.8 cents sharp; the concert-grade stability threshold is exceeded by 16:10. The reader is the tuner deciding whether to retune before tonight’s Schubert.
Open work.html in any modern browser. Read top to bottom as a real forecast — the advisory first, then the current conditions, then the two charts. The 19:30 curtain tick is visible in both. The page is monochrome on purpose: no color alarm, just facts.
Piece one of the series Weather for Instruments. The series argues that instruments have interior climates and the forms of meteorology — forecast, synoptic chart, year-diary — fit anything with a slow interior. The constraint here is institutional fidelity: every meteorological term must apply rigorously to piano interior, or the metaphor is decoration.
Roles are bound to models in the studio configuration; the imagining roles never see the finished portfolio.