Instruct: Classify the given Amazon review into positive or negative sentiment.
Query: One of the best CD's I've ever bought!

My daughter loves this CD! She is 23 months old, and sings along with quite a few of the songs. The CD has a separate song for each letter of the alphabet. The songs are catchy, without being annoying. This is a CD I don't mind listening to over and over, and I don't mind her listening to it over and over because I know it's teaching her.