I had this issue too, but there is a work-around. You can set a series of alarms for the times you need with the alarm 6 tone (the only one that wakes me up!). Then Cortana can switch those alarms on (eg: say "Turn on my 6.00am alarm").
I could find no other easy way to just turn off snoozing. other than this workaround here you can use Cortana as a workaround.
Say "Turn off Alarms" to Cortana.
Then say which one.
Note: This will turn off the alarms and not just stop snoozing.
From Windows Phone Help:
Alarm volume is separate from the overall phone volume and can't be
changed. As long as your phone is on, your alarms will still ring out
nice and loud even if you turn down or silence the phone volume.
The above applies to any Windows Phone out there. I used to have an LG Optimus too and I can't remember being allowed to set ...
Yep just change it in each alarm, once. so if you save wake me up at 2PM, and a PM alarm is already there and set to Nostalgia.. then it will be fine.
But its a deficiency, someone please add it to wishlist for windows 10.
they should always allow default setting on the same page, or use the last set as default.. ...
You can't change the built-in alarm (at least on my Nokia Lumia 925 with WP8).
You can however browse the Window Phone Store, in a simple search for Alarm Clock the first result was an app which can be configured differently for each alarm (the link will take you to the US search, the results may vary though, according to your country, model, OS and provider)...