+Plus to what Dusty said, but with one added thought:
Usually hardwood bridges are preferred and give better tone. Violins and banjos most typically have maple bridges.
However, I found out that with early style banjos the best most resonant sound is achieved with softwood bridges like spruce, cedar, pine, etc. I was at an early banjo gathering once where a fellow was selling bridges made from many various woods, and it was suggested by more than one person that i try a softwood bridge. I tried many bridges that day and they were right- the evergreen ones gave a noticeably richer more resonant tone... which very much surprised me. I bought several and put them on my 3 early style banjos.
I can only guess it's a similar effect as when a dulcimer has a spruce, redwood, or cedar top- which is softer wood but gives a very mellow resonant tone. I should note that the early fretless banjos use nylgut strings rather than steel strings and this may have relevance, other things being equal.
So don't destroy that cedar bridge once you make a new hardwood one. Swap them back and forth and do a sound test!
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