I have a Casio WK-7500 keyboard. Casio WK-7500 has a Midi output, but... It's not a regular Midi jack, but a USB Printer-type cable. (An interesting idea but with some issues.) I'm very knew to any computer-based recording studio/s. I've tried several times in the past, but always failed. Recently, I purchased Studio One Artist 2.6. I was able to connect my Casio to Studio One 2.6 via the USB jack in my Windows7 computer. Studio One was getting Midi signal from WK-7500 but the latency was way too big; therefore, I went to Guitar Center and purchased the PreSonus AudioBox USB Interface. After installing the AudioBox Interface on my Windows 7 computer, I've tried to connect my Casio keyboard to the AudioBox Midi input by using iConnectivity mio 1-in 1- out (with a USB adapter), but could not get any signal for my Studio One. What's interesting, Studio One is seeing my Casio WK-7500 keyboard, but I cannot get any signal from that keyboard to record with Studio One. Any ideas? Thank you