Appoggiature is a web app for independent music teachers in France. Students share their available time slots, ranked by preference, through a simple link (no account needed); the optimizer then builds a full weekly schedule that respects those choices, the teacher's availability and travel time between lessons. Day to day, teachers manage their calendar, attendance, lesson notes, homework, payments and invoices in one place. With Mon Studio, each student or family gets their own space to see homework and track practice (timer, metronome, statistics). The full schedule is free; follow-up is free for up to 3 students, then 1 EUR per student per month, capped at 15 EUR per month for unlimited students.