Scales are usually symbolic in terms of the Scales of Justice; they are balance, equality, justice, and harmony. In terms of FISH, scales are likened to a suit of ARMOR, signifying protection. Umich.edu There is the biblical reference : Acts 9:18 NLT[18] Instantly something like scales fell from Saul’s eyes, and he regained his sight. Then he got up and was baptised . In the kitchen, scales are used for baking in particular, which requires the precision needed for exact quantities. Any budding pianist who takes their craft seriously, would need to practice endless scales to lay the framework for the…