How do I filter instruments out of a song?

I want to filter out an instrument, and I have a sample of that instrument. Is it possible to use that sample to filter out an instrument?

Not in Audacity, nor any other DAW I know of.

Spleeter is your best bet: it uses AI,
see … https://youtu.be/IHSGrGXp_oo

Spectralayers Pro can Unmix Stems and does a pretty accurate job. The “other” category is a catch-all for what doesn’t get split out in Vocal, Piano, Drums, or Bass.

Stems.jpg

…is only ~$300, (Spleeter is free).