typedef struct clap_plugin_note_name {
// Return the number of note names
// [main-thread]
uint32_t (*count)(const clap_plugin_t *plugin);
// Returns true on success and stores the result into note_name
// [main-thread]
bool (*get)(const clap_plugin_t *plugin, uint32_t index, clap_note_name_t *note_name);
} clap_plugin_note_name;
the end should be
clap_plugin_note_name_t