I found another web based ear trainer that also works with Linux:
http://www.trainear.com/
It uses well known tunes to help fix the intervals in your mind.
Tony
> Linux-audio-user mailing list
> Linux-audio-user@lists.linuxaudio.org
> http://lists.linuxaudio.org/listinfo/linux-audio-user
musictheory.net seems far superior, and it works well with ff/linux