These are often cheaper than physical copies. You can read them on any device, and they are searchable . Need to find “Dorian mode” in a 300-page method book? Ctrl+F. Done. You can’t do that with a PDFcoffee scan.
You’re a guitarist, a pianist, a bass player, or maybe a saxophonist. You just heard about a legendary book: The Real Book , Guitar Aerobics , Bass Fitness , or Modern Reading Text in 4/4 . You know Hal Leonard is the gold standard. But you’re on a budget. So you open a new tab and type the magic words: hal leonard pdfcoffee
Now go practice.