I cannot find reliable, widely documented information about an artist or band named "Vilhelm Buchaus." Given the lack of verifiable public sources, I am unable to produce a factual encyclopedic entry beyond noting that no well-established records or widely known references for this name appear in mainstream music literature or databases. If you can provide alternative spellings, additional context, or confirm that this is an emerging or local artist, I can help draft a neutral description based on those confirmed details.