Stange piano music in effects volume control

Gameplay
1

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with the camera right here i hear a weird piano music playing from 2 different sources its under the effects volume controls i already looked with xray and layer cut to no avail

2

Are you close to any gravestones or sleeping hearthlings/monsters?

3

the map has 4 gravestones near my base but this music is clear across the map

4

I think that the music can be heard too where the death happened (not only when you approach the tombstone). But I think that it was mentioned as a bug or something.

5

Yes, music playing at place of death instead of attached to tombstone is a bug that is fixed in Alpha 11.