Any analyst with an knack for pattern recognition can see that the upright piano holds the key to solving this puzzle.
1. Note that the upright piano needs keytop repair at G6.
1.1. G6 also denotes the "Group of Six" countries in the European Union (Germany, France, United Kingdom, Italy, Spain, and Poland).
1.2. Poland was the 6th (and last) country to be admitted into the G6.
1.3. But Poland was the 1st of the G6 members to decriminalize gay sex.
1.4. Moreover, Poland is the only G6 member to have appointed a tranny to its Parliament.
Conclusion: CoCK: Those two are trannies.