The clearest pattern in the data is that students rarely addressed all five dimensions. The typical prompt drew heavily from one or two dimensions while leaving others entirely absent.
Average prompt length: 156 characters against a 120-character limit — 131% over on average. Students were trying to say more than the interface allowed.
EMO dominated. Nearly every student led with emotional or atmospheric description. Prompts like "calm, melodic smooth rhythm similar to the beat of a children's lullaby, slow tempo, and steady beat" (Group 7) and "relaxing fall music" (Group 15) convey a feeling but give the AI little sonic specificity to work with.
GEN was the most common structural anchor. Students frequently named a genre to organize their prompt: jazz, lo-fi, mariachi, J-pop, R&B trap. Sometimes with striking specificity: "J-pop, like YOASOBI's style, with some electric keyboard and guitar in the background, no jazz or heavy metal/heavy rock" (Group 5). But genre naming alone, without sonic or emotional layering, produced generic results.
BIO appeared frequently but remained underdeveloped. Some students referenced their recording by copying Cornell Lab language almost verbatim — "high-pitched metallic chips and series of loud, sweet whistles, rock piano" (Group 10) — without translating it into musical direction.
SON and INS were most commonly absent. Timbral descriptors and instrument specifications, the dimensions that most directly shape an AI's sonic output, appeared in fewer than half of submissions.
Three distinct prompt strategies emerged
Type 01
The Feeler
"Make an upbeat song that sounds like the feeling of walking through a park on a sunny day and incorporate bird calls."
Prompts weighted entirely toward EMO. Strong affective clarity, weak technical specificity. The emotional intention is clear; the sonic path to get there is not.
Type 02
The Describer
"Mellow bird call song with high keys on the piano, use the bird call recording, add an orchestra and some Chinese classical."
Prompts weighted toward BIO and SON. Acoustically grounded, but emotionally and generically underspecified.
Type 03
The Maximizer
"The musical genre is relaxed modern jazz with some synthetic electronic sounds. One instrument sounds like a trumpet. Then 15 seconds in, a synthetic techno sound arises..."
Prompts that attempted to cover everything at once. Group 2 wrote 626 characters — 522% of the limit. The impulse was right; the execution needed scaffolding.
None of the three was wrong, but all three were incomplete in predictable, designable ways.