Which pieces. . .

[vixxa]

. . .refresh you, make you think of sunshine, fast moving water, or just joyful thoughts?
 I'm interested in finding some that are fast moving, somewhat simple, with appealing progressions.

[eduardom]

Minute waltz- chopin! its a lovely piece of music and quite fast!

[chopincat]

I'm not sure if this fits your other descriptions, but for me sunshine and fast moving water definitely bring to mind Chopin's F major prelude.

[chopincat]

I just thought of another one - Debussy's 1st Arabesque!

[richardb]

Scarlatti Sonata in E Major K 531

[worov]

Ernesto Nazareth : Odeon

[alistaircrane4]

Sunshine? Then obviously Chopin Etude op.10 no.8 aptly nicknamed the "sunshine" etude. Fast moving water? Debussy Images book 1-"Reflets Dans l'eau"

[bonesquirrel]

. . .refresh you, make you think of sunshine, fast moving water, or just joyful thoughts?

For a second I thought you were talking about weed sorry..... 

[visitor]

[eldergeek]

For me, it would have to be the A Major Prelude and Fugue from Op. 87. by Shostakovich.

[vixxa]

Minute waltz- chopin! its a lovely piece of music and quite fast!

Hi eduardom--thanks for responding (and to everyone who  contributed to the list )
Which minuet waltz are you thinking about? Op. 18, for instance?

I think BWV 937 almost fulfills the descriptions.

[chopincat]

Which minuet waltz are you thinking about? Op. 18, for instance?

Eduardom said MINUTE waltz, not MINUET waltz. "Minute Waltz" is the nickname given to Chopin's Waltz op. 64 no. 1.

[pianoman53]

La Mer and the first movement of images... Seems quite obvious

[ignaceii]

Jeux d'eau de Ravel.
Do not tumble over your fingers he.