GamesFPSCall of DutyCall of Duty: Black Ops 6How to solve the Black Ops 6 piano puzzle solutionWhen you purchase through links on our site, we may earn an affiliate commission.Here’s how it works. GamesFPSCall of DutyCall of Duty: Black Ops 6How to solve the Black Ops 6 piano puzzle solutionWhen you purchase through links on our site, we may earn an affiliate commission.Here’s how it works. When you purchase through links on our site, we may earn an affiliate commission.Here’s how it works. (Image credit: Activision) The Call of Duty Black Ops 6 piano puzzle is the key to revealing a hidden part of the safehouse. If you’re playing the Call of Duty campaign and are willing to explore The Rook intermissions a bit more, you might want to try your hand at this tricky puzzle. Beware that the piano puzzle is only the first trial in a series of hidden safehouse challenges, which also includes theBlack Ops 6 safe code puzzle. Luckily, a big reward awaits at the end. If you need some help, …