Really Low

"Martina, ooh, ooh, ooh, ooh, ooh, ooh, ooh."
"It’s been a while since I heard that."
"Yeah, because my guitar’s tuned down."
"Huh?"
"The guitar, it usually has a certain tuning, but I tuned it down, which allows me to sing songs I wouldn’t usually be able to sing. Your song, it’s already low, so if I sing it with the tuned-down guitar, it’s really low. That’s why."
"Ah."