Here are some things we think you might find helpful.
Click on the images to get to the links.
Online Ear Trainer
Musictheory.net is a website with interactive trainers for ear training and theory.
good-ear.com is another great website to help students of all levels work on their ear training.
Audacity - Free software to slow down recorded music
This software is a safe, free download that allows you to speed up or slow down recorded music, and also change its key.