The key to why a Carlebach minyan "works", comes from Shlomo Carlebach himself. He didn't have a great voice, but he understood that the collective voices of people davening in song together could sound great and make up for not everyone having a great voice.Ari Boiangiu has set up a little website with audio clips to promote his new release.
KAAB has posted Hilchos iPod
A Simple Jew on Simply Tsfat.