I am in the UK and have recently purchased an Echo Dot. The instructions I have found online say that there should be an option when editing an existing alarm to change the alarm sound. However, I don't appear to have this option. The only way I can change the alarm sound for existing alarms is to change the default sound, delete the alarm, and then recreate it. Does anybody actually have this option? I suppose it could be an option which isn't available in the UK, but it seems ridiculous that such a trivial option like this would be subject to such restrictions.