The word comes the Greek Heurisko [heur (to find out, discover) + Latin isticus, – istic] meaning “find or discover.” A heuristic is an approach to problem solving, learning or discovery that is not exact or completely accurate, but it gets the job done for the nonce.
Udemy.com is an online tutorial services offering courses in many, many areas, from software development to business to how-to’s with popular software programs to various things in the arts, including…. music. There are tutorials in many instruments, but also music theory, audio production, composition, songwriting, and more. There is a range of prices, but in general, the tutorials seem to be a bargain.
“The best free cultural & educational media on the web.” Links to free: audio books (550), online courses (1,100), MOOCs (1000+), movies (700), language study (300 lessons), textbooks (200), eBooks (700), business courses (150), K-12 education, art & images, music. Such a deal!