PoppaGator,

. . .it is an absolute assertion that nothing beyond human understanding could possibly exist.

I find myself confused by this statment.

In the first place, athiests that I have any experience with tend not to assert anything regarding existential claims without solid evidence to support those assertions. It seems to me that for an assertion to be seen as absolute it must indeed be supported by evidence. You seem to be claiming that this is not so.

I admit the possibility that some people at the extreme end of that philosophy might hold that belief, but not as many as you seem to believe.

Secondly, human understanding of what? It seems to me that since I am human, that any understanding that I am capable of regarding anything at all would be human understanding.

Now for the on-topic answer--

I, myself am agnostic. I am comfortable singing some believer songs, as long as the core message of the song is something I can agree with, or if it is just too good a song to resist--(I will confess a weakness for shape-note songs.)

I prefer to cultivate music that is more secular/humanistic in nature, though.

NS