Yes the price is cheap but there are loads of lyrics databases out there, mostly messy as fuck!
Not sure why providing sample data is so hard, but if you can't do that can you please explain how this db is configured for wordpress?
For example:
Are artist, album and song title there as categories, tags or both?
How is the data formatted for the posts? What info is shown in the title and post body?
How clean is the data? Are there duplicates? Reversed names (e.g. Jackson Michael)? Any issues with non-standard characters getting fucked up?