Cornerstone Cafe is a cute shop in Calgarys' southeast. They've been around for 20 years and have a brilliant musical aspect to their business. Not only are they a coffee shop, but they are run by musicians who offer lessons in an assortment of different instruments, and host live music on the regular.
If you find yourself down in their neck of the woods, you'll be happy to know they have a wonderful selection of breakfast, lunch and dinner, as well as espresso and filter coffees, and some lovely desserts.
Check out their website here: www.cornerstonemusic.ca