https://www.tiktok.com/t/ZP86sDDaD/
In this TikTok, the creator teaches how to play some basic blues. He plays a simple song, that goes like a7 twice, d7, a7, e7,d7,a7,e7. But on the last e7, it sounds a little different when he plays it (and very cool). What exactly is he doing there? Muting the strings or something? Thanks in advance!