Wrap Meta Box with <li> and </li> for each new line

I'm trying to automate one of our posting aspects. We post a lot of lyrics and have a system of meta boxes which we use to input various pieces of information about each set of lyrics we post. One aspect that is a little annoying is having to search replace li/litags to the start and end of each new line of lyrics. I was hoping to have PHP echo this automatically but my code is not working at the moment. Here is my untouched code which outputs a verse of lyrics (we use wpautopso that line breaks are respected):

?php if ( get_post_meta($post-ID, '_cmb_lyrics_1', true) ) : ?
?php $lyrics_1 = get_post_meta($post-ID, '_cmb_lyrics_1', true) ?
ul
?php echo wpautop( $lyrics_1) ; ?
/ul
?php endif; ? 

And here is my attempt at outputting litags, which didn't work. :(

?php if ( get_post_meta($post-ID, '_cmb_lyrics_1', true) ) : ?
?php $lyrics_1 = get_post_meta($post-ID, '_cmb_lyrics_1', true) ?
ul
?php 
echo "li\n"; wpautop( $lyrics_1) ; "/li\n"; ?
/ul
?php endif; ?

Any help appreciated. Thanks.