@Steven-Vandross You need to set up the audio driver in the program settings. If you select Direct Sound you should get playback for audio loops. If you also want playback for MIDI loops and live recording you need to select ASIO. Music Maker offers Magix Low Latency as its standard ASIO driver. You need then click on the "Advanced..." button and activate your audio devices you want to use with the ASIO driver.
Please do not duplicate posts on the same topic, additionally 2 word title and comment are insufficient to determine what the issue is.
Continue on this issue in this topic and provide more information, a screenshot preferably, of the Audio settings options in the Program Settings, Audio/MIDI tab.
When I use the on-screen keyboard, I enable the Wasapi driver. Here I specify whether the sound through my headphones, speakers, etc.. should be played.