Music covers the genres string instruments shaped: blues, folk, country, bluegrass, rock, flamenco and the places they cross. Coverage attends to tunings, voicings, rhythmic feel and the recordings defining each style. For players tracing where a technique came from, and listeners wanting the playing explained inside the song.
Long before the phrase 'guitar hero' existed, Sister Rosetta Tharpe was filling stadiums and bending the instrument to her will — a documented look at the player the Rock and Roll Hall of Fame credits with shaping the sound that followed her.
String makers' published guidance lands at roughly 100 playing hours or three months for a casual player — and your ears are the final gauge.