An invitation is only part of access. Instruments, time, transport, disability, social networks and the design of an activity can affect whether participation is possible.
Current members cannot speak for everyone outside.
A choir-access review found that its underlying studies concerned current members. That leaves important gaps around people who never joined and people who left; the same question matters when reading band surveys.
An inclusive online improvisation project describes response time, support workers and adapted participation. It also documents technical and co-design limits. These are examples to examine with participants, not universal solutions.
Research distinguishes attitudes of welcome, personal experiences of inclusion and changes to wider structural inequality. Those are related questions, but they require different evidence.