yläsävelsarja (Finnish) comes from Finnish yläsävel, from Finnish ylä-, from Finnish alhaalla, from Finnish ala-, from Proto-Finnic ala, from Proto-Uralic ëla — below.
yläsävelsarja (Finnish): harmonic series
Definitions
harmonic series
Ancestry of “yläsävelsarja”, step by step
yläsävelsarja traces back through two separate lines of ancestry.