Any tips for making a animated music video??

My only suggestion would be listen to the music.

is what i think phacker means. and what i think is next in your process.

having done the boards, you need to know when the beats fall on which frames.(considering the rhythm is pronounced in your music)

then an animatic with sound would be your next step.
this would tell you the duration of each scene.

then you need to write down on exposure sheets
the animation instructions for each scene, using the beats as guide.
we used to call this charting.

good luck.

Many songs have repeating choruses, so some of your animation can be reused. Have a concept in mind before you start.

Animating to the rhythm is very important when doing music videos, and getting the emotion across. This can be especially effective in animation, since you can exagerrate and move things much quicker than you can in real life. Use this to your advantage, good luck

sure, it looks cool going down to the beat of the music
but the visual rhythm is a harmonious complement to the music
not a slave.

it's ok to break rhythm at times, to show that
the animation is independent and has character of its own.

i did a whole 20-sec animation then decided to slap a Queen song afterwards.
with a few frame trims, it came out ok.
to the beat on the heavy parts, more liberal on the AB parts.

good luck.

If it's electric it will have a fixed BPM throughout. Ask the composer what it is, then work out how many frames there are per beat. you can use this as a length for cycles etc.

Frames Per Beat = 60 x Frames Per Second
Beats Per Minute

I use Adobe Premire to split the music into frames,and made another story board base on the original one which is more specific on timing and motion.Then spent most of the day to divide the frames for each scene... Is there better way of doing this?

Buy a copy of Magpie's cheap version. I think it's $99 right now. This software will allow you to analyze the soundtrack and annotate individual frames. It's really for lip synch, but that may be something you'll need as well.

The way it works is you can drag or play parts of the sound clip and make notes in a chart designed for lip synch and notes. The Pro Version ($250) will do the lip synch automatically, though the music may confuse it a little. The pro version works great with 3D or 2D, and you can have several "actors" for different things you want to animate. Give 'em a look at http://www.thirdwishsoftware.com. Great stuff. Tell Miguel Rupert Piston of Mac and Retro fame sent ya. He's a great guy, and has great customer service.