Last night I managed to find some other more soothing sounds to be woken up by. I set the said alarm 'Good Morning' and went to sleep. This morning it went off as planned, however when I went to re-set it the melody had changed to the default alarm sound.

For the life of me I cannot work out where the original melody, and the other nice melodies have dissappeared to.

Any suggestions from you clever people out there?

Anyone???

Don't know how you 'reset' this.
The alarm sounds are accessed by going into Applications>Clock> then choose your alarm clock setting and then choose Alarm tone and then Sounds.
Don't know it that is of any use.
When the alarm sounds just swipe in the direction of the arrow and that will silence the alarm until it is next set to alert you.

I've managed to find the 'hidden' sounds within the alarm menu.

It's part of the 'smart alarm'. You have to tick the box then press and hold the smart alarm bit. This opens up another section of soothing melodies. When the smart alarm goes off at the pre-determined time prior to the original time the screen lights up and the melody plays quietly at first, then gradually gets louder over the next few minutes.