The decibel (dB) scale measures the physical intensity of sound. However, the relationship between decibels and perceived loudness is not linear; it is logarithmic. For instance, a sound of 80 dB is generally perceived as twice as loud as one of 70 dB, but the actual increase in intensity (in terms of power) is much greater.
For example, in the key of C major, the Solfege scale would be: sone scale
The Solfege scale is typically represented as: The decibel (dB) scale measures the physical intensity