Adding Multiple Category Dropdowns

Hi,

I’m building a site that will require multiple dropdowns, each displaying a different category like so:

Genre (Dropdown 1)
Rock
Alternative
etc

Tempo (Dropdown 1)
Fast
Slow
etc

I can easily display ‘All’ categories using the following: (taken from the codex)

<?php wp_dropdown_categories('show_count=1&hierarchical=1'); ?>

I’m just not sure how I can have multiple instances, each displaying a different category..

This doesn’t seem to work, when I add &cat=26 at the end of the line of code:

<?php wp_dropdown_categories('show_count=1&hierarchical=1&cat=14'); ?>

<?php wp_dropdown_categories('show_count=1&hierarchical=1&cat=26'); ?>

Any suggestions would be most appreciated!