Complex sentence: CMX is barely known outside of Finland (due to Finnish lyrics and lack of marketing push), but as an anecdote, Billy Gould of Faith No More named their "Rautakantele" as his favourite album of 1995.
Split into simpler sentences: CMX is barely known outside of Finland (due to their Finnish lyrics and lack of marketing push). However, Billy Gould of Faith No More named their "Rautakantele" as his favourite album of 1995.