They have a midi out that will suffice for most things, but I don't know of any arranger keyboard that has an audio output for each and every audio segment. Most of the folks I know that do any serious recording use multi-channel software and layer their songs, which is a bit time consuming, but really works well. Audacity works extremely well in this respect, and it's free at https://www.audacityteam.org/

Good luck,

Gary