There are a variety of free online classes available through Lynda.com. Lynda.com classes are available with a Free Library of Philadelphia card. Use the following step by step guides in order to access this resource for free.
Once you are logged in to Lynda.com through the Free Library of Philadelphia's website, you can search for the following classes.
Audition CC 2019 Essential Training (4hr 15min)
Learning FL Studio 12 (2hr)
Learning Studio One 3 (5hr 22min)
Learning Audacity (2hr)
Ableton Live 10 Essential Training (13hr 42min)
Producing Podcasts (1hr 45min)
Microphone Techniques: Essentials (2hr)
Audio Recording Techniques (5hr 17min)
CAM Erie is a nonprofit corporation with a focus on providing community access to mass media. CAM Erie has put together two webinars, Podcasting Basics and Audio Recording Editing with Audacity. Links to those webinars are found below.