As many have said, learning to play ‘back-in-the-day’ (Late '60s early '70s) involved a Mel Bay chord book and mine came with a record to tune the guitar . Which turned out to be okay because my record player The turntable turned too fast; but, because I tuned to record with the book I was able to play along with the my fav records at the time. It took a few times to realize that the turntable was fast when I tuned to an A 440 tuning fork - the records were sharp. not long after, I got a better turntable and discovered I could record the songs on a tape player, then slow the tape player down and it made coping Jimmy Page licks (then others) easier. As archaic as all that sounds when compared to today’s technology, we were light years ahead of the cats from the '20, '30s and ‘40s. Because we had easier access to prerecorded music. Which meant we could learn to play by copying music at home. We didn’t have to rely solely on seeing (hearing) other musicians perform live, or listening to the radio or (God forbid ) learning how to read music. Until records came along music was still (mostly) a live performance art. This meant learning to play most instruments involved much more formalized instruction.