Making sense of these lyrics

[darri]

"Do not ask me for a smile
Life is short but love is long
Let me not your heart beguile
Pray content you with a song"

I'm not sure about the meaning of the last two lines. Could somebody rephrase them or tell me what they mean?

Source:
https://www.youtube.com/watch?v=yqdlHv3xbj8&feature=youtu.be

 

[emsr2d2]

I would say that it means "I'm not going to try to win your heart. I'm just going to try to make you happy with a song".