Not sure but it happened around 1969 for me. Vanilla Fudge, Carlos Santana, BS&T and Eric Clapton among others opened my eyes in the mid-late 1960s by doing cover songs that didn’t sound at all like the original records.


BIAB 2024 Audiophile Mac
24Core/60CoreGPU M2 MacStudioUltra/8TB/192GB Sequoia, M1 MBAir, 2012 MBP
Digital Performer11, LogicPro, Finale27/Dorico/Encore/SmartScorePro64/Notion6 /Overture5