# Séance d'évaluation – cours de musique with Rockstudio Liège

> 30 minutes, 35 €, payable en ligne à la réservation. On fait le point ensemble : votre niveau, la musique que vous aimez, vos objectifs. On joue, et vous repartez avec un plan clair et la formule qui vous correspond. Guitare, basse, batterie, clavier ou chant, enfants et adultes. Chaussée de Tongres 458, 4000 Rocourt.

- Host: Rockstudio Liège
- Duration: 30 min
- Location: Rockstudio, Chaussée de Tongres 458, 4000 Rocourt
- Host time zone: Europe/Brussels
- Confirmation: Bookings are confirmed instantly.
- Payment: required, and collected on the booking page.
- Booking page: https://cal.com/rockstudio/evaluation
- Event type id: 7780909

## Check availability

```http
GET https://api.cal.com/v2/slots?eventTypeId=7780909&start=YYYY-MM-DD&end=YYYY-MM-DD&timeZone=<IANA time zone>
cal-api-version: 2024-09-04
```

The response is `{"data":{"YYYY-MM-DD":[{"start":"<ISO 8601 with offset>"}]}}`; no API key is needed.

## Book

```http
POST https://api.cal.com/v2/bookings
cal-api-version: 2026-02-25
Content-Type: application/json

{
  "eventTypeId": 7780909,
  "start": "<UTC ISO 8601 start from the slots response>",
  "attendee": {
    "name": "…",
    "email": "…",
    "timeZone": "<IANA time zone>"
  },
  "bookingFieldsResponses": {
    "notes": "…",
    "attendeePhoneNumber": "…"
  }
}
```

- Required fields: `name` (Your name), `email` (Email address), `notes` (Pour qui, quel instrument, quel niveau ?)
- Optional fields: `attendeePhoneNumber` (Phone number)
- `name` and `email` go in `attendee` and `guests` is a list of emails; every other field goes in `bookingFieldsResponses` under its name.