i have a sql problem. I got two tables:

```
album (asin(pk), title, artist, price, release, label, rank)
track (album(pk), dsk, posn, song) 

```

I need to find cheap albums where the price per song is under $0.5. How can i filter with a divion? My attempt so far:

```
SELECT a.title,a.price,COUNT(b.song) 
FROM album a 
JOIN track b 
ON (asin=album) 
GROUP BY album 
HAVING COUNT(a.price / b.song)

```

I know that is wrong. I'm very new to SQL and it's confusing. I hope you can help me.

Thank you very much!