Modern Art- Band Area Guitar

[Karma Kamelion]

I'm having issues with placing the guitar in the mannequin's hand. You can lift the guitar up, spin it around, but you cannot tilt it from left to right to get it to lock in. Am I missing something or is this not the guitar that goes there? I haven't found another one.

[Linzombie666]

There are 2 guitars. One on the band stage(green), other in Cafeteria(yellow). They're two different guitars, so you cannot place them randomly on the mannequin. Green left, yellow right.
As for placing, if you hold the item and get close to where it should go, there should be a red/green outline appear. If that outline doesn't appear, it only means this item doesn't belong there.