I'm a guitar player and recently got into piano. I got a Yamaha P-45 and, since I record instrumental tracks with guitar and bass, I tried to record my piano, but I ran into some issues. First I tried connecting my piano to my guitar amp which with my guitar cable and was able to record it (obviously the sound wasn't great as it's a guitar amp and not meant for any other instruments). So then I tried to record the piano without it going through my amp. I had to get a jack reduction and then plugged a male 3.5mm jack to male 3.5mm jack into it as well as into the microphone slot on my PC. I was able to record it, but there was a significant delay that was preventing me from staying on beat since the only way for me to hear what I was playing was through playback. I tried solving the problem by getting a splitter that I plugged into the reduction on the piano, plugged the jack into the microphone slot and then regular headphones into the headphone slot so that I could hear myself while playing. For some reason, though, whenever I plug both of those things into the splitter there's this extremely loud buzzing that I can't get rid of. If I unplug the jack that goes into my PC from the splitter the buzzing goes away and the sound's pretty good in my headphones, but the second I plug it in it's back. I didn't try to save money on cables, so the problem shouldn't be there. Anyone got any ideas as to how to solve this?