There are 4 basic things needed:
1. A Bluetooth foot pedal.
2. A BT transceiver setup that can receive and send MIDI
3. A software that can send specific commands when you click the foot pedal to turn the page or turn to the next song in the list.
4. Another software that transmits everything out everywhere for all MIDI devices to "hear". (optional in this case if you do not want to control a Roland BK-7m arranger).
BT = Bluetooth.
1 - BT foot pedals, there are a few options there... AIRTURN and iRig Blueboard are the 2 main players that I can see. Both are good, get ones that have a minimum of 4 buttons (page forward/back and song forward/back)
2 - I use an FR-8X, it has 2 MIDI jacks, an IN and OUT. I use the CME WIDI Master, plug it in and am done. For your BT MIDI receiver AND transceivers, on the 4X one is kind of screwed because they gave only ONE jack that is either MIDI in or out... stupid, but a money saver. One has to then use a USB to MIDI wireless transceiver (I've NOT done the research on this, but you will ***likely*** need the WIDI UHOST from CME, which goes from your USB to this device and then also need to connect a small USB battery to power everything, I believe. I don't own a 4X, you will need to do some work or just reach out to CME and let them tell you which of their products will work for your scenario).
3 - Software. There are a few softwares out there that work on both Android or Apple. Apple I know is of a higher quality, less issues BUT the price is much higher. I chose to save longer (waited almost a year) and bought the 12.9 inch Apple iPad Pro with 1 TB internal storage. This is overkill for most but I don't recommend going under 128gb storage. My software of choice is Songbook Pro. It is a higher end page turning software, I can make many lists or sets of music. It basically does 2 things:
- turns the page or moves to the next song
- when selecting a song, no matter which you open, sends (in my case) 2 distinct sets of MIDI commands, one that the V-accordion receives to tell it what set or UPG and what register to set it to and it also sends the command to tell my BK which rhythm via a internal or USB located list to use. In those lists I can set rhythm speed and starting variation.
4 - In my case, because I need bi-directional communication from the 8X to the BK-7m to tell it what chords to change to and I need it to be able to receive commands from Songbook Pro to configure the different sets/UPG sounds I want. If you do not need the 2-way communication, you don't need this 2nd software... but in my case, I use a free software called MIDI WRENCH and have the BK and 8X connect to it and in this software, use the option to ECHO ALL... easy peasy!
Then the one big part that makes all the magic happen is to have Songbook Pro "tell" your accordion what settings you want sent. For me, I send 2 commands per song, but our friend Jorpe only needs one command... the one that when he opens a song, to change to a specific registration.
I don't really feel like retyping everything, but I have all the basic instructions in both
my website, and on the video below that I made:
I hope that gives some direction... shout out if you get stuck anywhere along the path!
