Tightening or Loosening Strings for Correct Sound

This page is the CodyCross answer for the clue below from Futuristic City , Group 993, Puzzle 1 (Energy Efficiency).

Question is: Tightening or Loosening Strings for Correct Sound

and the answer is: TUNING

Word Meaning:

TUNING — Action of the verb to tune.

Definitions from Wiktionary.

Tightening Or Loosening Strings For Correct Sound - Futuristic City CodyCross Answers | CodyCross Solutions