Add to existing IOS music player app features that allow to Control to/from ESP32 by BLE

Need to add to existing music player ios app features that allow to auto-pair with ESP32 device by BLE and control esp32 by Bluetooth and vice-versa- from ESP32 to can control ios app- start/stop/pause/volume specified songs. The command must can be set from ios (in mp3 songs tag "Disk#" it must have up to 160 characters), and on start some mp3 play- if in that mp3 tag filed "Disk #" exists some text(command)- to send it to paired BLE esp32 device, also to can receive commands from paired BLE esp32 and start/stop/pause specified songs.