Finally, the aesthetic: imagine the UI as a composer’s score—clean staves of code with occasional annotations in a different hand. The product key is a leitmotif that returns in varied contexts, sometimes triumphant, sometimes buried in counterpoint. Vectors are the tempo and dynamics, shaping how motifs develop. What keeps the reader—or user—interested is this choreography: predictable rules that nonetheless allow improvisation, structure that invites improvisers.
