RyanEdward

The cable was indeed the problem. I purchased a Roland MIDI cable and everything works now. Good to know I'm not the only one who fell for those blasted lights!

Thanks for the quick reply! I have done this. Same problem persists. I'm using one I purchased from ebay (see attached file for an image). It has two lights for 'IN' and 'OUT'. When plugged in and I press a key on the piano the 'IN' light flashes, so I have reason to suspect it does work. The 'OUT' light never flashes however. It cost $12 AUD. There are others I have seen costing $68 AUD, e.g. ROLAND UM-ONE MK2 USB MIDI INTERFACE. Is this price of $68 the 'standard' for these cables of serviceable quality? i.e. I just want to copy a midi file over, nothing high-tech.

I understand that this forum category is for Celviano AP-X20 series, however my Celviano model is old and not listed here, so I thought this is the most appropriate place. Please forgive me. I wish to copy a MIDI file from my Windows 10 x64 PC over to my Casio Celviano AP-24. I have purchased a MIDI in-out to USB adapter with 'drivers preinstalled'. As stated on http://music.casio.com/e/smf/, the AP-24 is supported by the SMF Converter. However, when I open SMF Converter and select the option to 'copy to keyboard' it returns with 'no response from keyboard'. I then choose 'set up MIDI device'. From the drop down menus for 'IN' and 'OUT' I choose 'USB A' for each. The same problem persists. I HAVE TRIED: > Opening SMF Converter as an administrator > Running SMF Converter in compatibility mode with XP. > Running on Wine in Ubuntu. > Installing the drivers from https://support.casio.com/en/support/download.php?cid=008&pid=72 (although not actually for this model, I thought it was worth a shot) > Testing the 'convert only' option. This ostensibly works. > Emailing Casio support. Very disappointed here. I get back an automated email saying to contact there 'international' team via a link. I use this link and get the same email back telling me to contact the 'international' team. 3 times I have done this. NOTE: In SMF Converter, the MIDI connection does seem to appear however it just can't interact with it. Any help would be greatly appreciated!