Mamma Mia by ABBA.
Sungha Jung is a South Korean musician who specializes in acoustic fingerstyle guitar. Jung creates acoustic covers and arrangements, typically by ear and/or by watching videos, and composes original songs, which he plays and uploads online. His YouTube channel currently has more than 6.39 million subscribers (as of August 2020).
ABBA, from the album: ABBA 1975. Fingerstyle. 4/4 Time Signature, Drop D, 9pages, 88 measures. Tabbed by yuji812