In Search Of Nice Waltzes

Here's 7.

Maggie West's Waltz. Composed by the young lady in the middle of this video in honor of her Grandmother. 

Planxty Hewlett sounds like a waltz to me and it plays well on a harmonica. There are some  fine, authentic versions on YouTube. Here is a simple version I recorded in 2015.

That is a great list. In the first few pages I saw some great tunes that I like to play on the harmonica.
The Ash Grove
The Skye Boat Song
The Star of County Down
Planxty Irwin
Scarborough Fair
Amazing Grace
Be Thou My Vision
However, I do not consider all of these to be waltzes. Just that they are all in 3/4 time. What's the difference? I don't know. Maybe they can all be played as waltzes. The Skye Boat Song is a beautiful tune but doesn't feel like a waltz to me. Here is a recording I made in 2014.


Here is The Ash Grove. There are some bent notes in this video. You probably need two diatonics or a chromatic to play this without bends.
This might be considered a waltz. I first heard this in church as the melody to the hymn Let All Things Now Living.
 

A waltz is defined as 3/4 time. Still waiting on the definition of a Folk tune!

I’ve always read that a folk song is a tune handed down through the ages and often varied but so passed around that the original composer is unknown. 

I think it would be pretty hard to waltz to a song that is not 3/4 time.