A while ago I created some Bassoon signage. The wall mounted version 3 seems to be the way to go.
I also, more recently, explored the 'Ominous Door' Red goes through to arrive at the Bassoon District. There are so many lovely valves and shapes on the bassoon, they really lent themselves to giant ornate doors you'd expect in a more fantasy setting.
1 was a large single door. 2 was a symmetrical gate and 3 was an asymmetrical gate, with a smaller door on the right side.