Adding "like" to a prompt in SQL oracle

I'm trying to create a query for a CD collection. I need a prompt that will search for any part of a song title in either lower or upper case, but I'm having problems. I know how to do a prompt and know how to search for part of a string, but can't seem to put the 2 together. Here's my query (that's not working):

SQL> select l.labelname, c.catnum, a.artistfirst, a.artistlast, c.title, s.songtitle
2 from cdlabel l, cdcatelog c, artist a, song s
3 where l.labelcode = c.labelcode
4 and c.catnum = s.catnum
5 and a.artistnum = c.artistnum
6 and lower(s.songtitle) like '&%EnterTitle%'
7 ;

I have tried every which way for the syntax on line 6 to work to no avail. What am I doing wrong?

Thanking you in advance,
Cheryl

I figured it out. Last line should read:
and lower(s.songtitle) like '%&Entertitle%'

I was sure I had tried it that way earlier, but I guess not. *sigh*