Is there a set form for Waltzes?

The title says it all.

As far as I can see, there are Waltzes, then there are Valse Triste and Valse Brillant and maybe some others.

I've seen some like a Valse-Trio-Da capo Valse, others like somewhat of a rondo, others... I have no clue.

So, does anyone know what exactly the forms are for a Waltz?

No, a waltz does not have a fixed form. a strong emphasis on the first beat ("UM-pah-pah") and 3\4 time is common though. I'm sure more experienced composers have more to say about this issue. :D

Actually, one is the weak beat. It's more "oom-PA-PA oom-PA-PA". But thanks anyways.

Actually, one is the weak beat.  It's more "oom-PA-PA oom-PA-PA".  But thanks anyways.

One might construe it that way in a Viennese waltz, perhaps, because the second beat comes a little early. But not in early waltzes (such as Schubert's), nor in most slower waltzes or the English-style waltz.

But no, the waltz has no specific musical form, largely because it is not a figure dance (wherein a prescribed sequence of steps must be performed within a specific number of measures of music). The basic step (known as a box step) is very simple, in closed position (the couple face to face), requiring only two measures of music to complete, and can be repeated indefinitely. Waltzes not actually intended for dancing are even freer in form.

Or a mazurka which is um pah PAH um pah PAH um pah PAH!

Mannnnnnnnn i loved typing that.

Waltzes are clever, Since they are so simple that leaves alot of room for a composer to adjust it. My opinion the best waltzes I have heard are by Johhann Strauss and I believe this waltz which was by Richard Strauss. Strauss what a wonderful waltzy name :P

Emil Waldteufel was also a very good waltz composer. His treatment of melody I especially appreciate - different from the Strausses...more intimate perhaps.