tuned

brought to correct pitch

• “his tuned violin”
• “the attuned instruments”

so adjusted as to be appropriate or brought into harmony

• “an industry not attuned to the demands of the market”
• “a remark keyed to the situation”
• “charges finely tuned to the amount a student can afford”

tuned in equal temperament; or so tuned as to allow modulation into other keys