Time flies in the music business. Its hard to remember that vinyl records were once the only option for recorded music, and some of your students are probably only vaguely aware of Compact Discs!  At the moment they are used to solid state devices that can store nearly unlimited music libraries. Just push a virtual button and hundreds of hours of music are there for the listening. Consider this: The idea of a physical device scratching on a needle while rotating is now that much more fascinating a phenomenon for STEM students. So retro tech is cool and can be a teaching tool too-but why just bring in old vinyl to rock out with when you can now cut your own records? Thanks to a couple of very clever instructables, your STEM students can add music to the mix with the help of CNC machinery. The CNC can be a desktop 3D printer or a mill, either one presents a quality opportunity to integrate art in the form of music to your student’s  CNC skill set. This project takes a sheet of acrylic and cuts out the grooves on the CNC mill after converting the music to machine code. The other option for those teachers with a 3D printer is to create a record from abs plastic, again using music converted to machine code. It’s really amazing to see this retro technology come to life with the help of cutting edge software and hardware. One thing you will need in addition is an old record player-they can still be purchased new with a handy usb interface to play the music through your computer.  Since students can now cut their own records using music they have composed themselves, take advantage if you have an advanced music program at your school, and get the music teacher involved too. You might have a CNC gold record on your hands.