I'm certain it is lovely and that it is happy to sing to you. I wish I could have heard it, but there is this high frequency hearing loss problem with my ears. No birds singing that I could hear.
It may be possible to recover some of it with a hearing aide, but along with the loss comes chronic ringing in the ears. The ringing destroys anything I do hear in the upper frequencies and there is nothing that can be done about tinnitus.
The really sad part of all this is my wife's voice. It's not what I used to hear, and I'm not likely to hear the original ever again.