One more improvement:
Challenge: "Honky Tonk Man" - Rescue Heidi from Jordan Cross by assassinating Jordan Cross with the Electric Guitar.
- When you've mixed the tune successfully as the Crewman, record the "New Song" vocals with Jordan Cross. After Jordan approves of the "New Song", disguise yourself as the new drummer and complete the drumming audition and dialogue on the roof.
-The Class: You (as Abel da Silva), Jordan Cross, and Heidi the guitarist, will then record the "New Song".
-Jordan will lead you and Heidi to one of his rooms at the Emperor's Suite (the room with the Electric Guitar) and start talking about how successful the new single will be.
-Jordan will eventually exit the room to "take a leak". Heidi will confront 47 about the conversation on the roof. 47 will reveal Jordan's plans to break up the band.
-When Jordan comes back Heidi and Jordan will have an argument, and in the same argument Heidi will deduce that Jordan killed her friend Hannah Highmoore.
-A scuffle will result in Heidi being in danger, hurt on the floor and looking away, while Jordan is holding up the electric guitar to kill Heidi.
-You will get a "Q" prompt to take the guitar from behind Jordan and wallop him in the head killing him and shattering the electric guitar.
-Heidi will recover soon afterwards and she will call a guard when she sees Jordan is down, when the guard arrives they will discover that Jordan cannot be revived. (Note: If you subdue Heidi before she can exit the room, this is still SA since "Body Found" will not appear when Heidi sees Jordan is down. Heidi will be disoriented so you have ample chance of subduing her by repositioning behind her).
-If/When the guard confirms Jordan's death that's when all the notifications appear. The Drummer disguise will be Compromised to guards and NPC's on the Penthouse floor and other areas where Jordan's Bodyguards may be found.
-Even after being Compromised for doing the "Honky Tonk Man", Heidi will not alert others to your position if she spots you.