Is it time to tune my piano?

Yes it is.

• There is a good chance it is out of tune because of winter dryness in your home. I'd book the tuner to come by soon after the furnace closes for the summer.
  
• It is definitely out of tune if you can't remember the name of the last person who tuned it.
  
• Most pianos need at least 2 tunings a year
  
• The Piano Life Saver is a product I've used. "As a fundamental component of complete piano care, it protects your piano from the undesirable effects of extreme or fluctuating humidity levels. The Piano Life Saver System will enable your instrument to maintain proper pitch between tunings and protect the myriad of tiny wooden parts that make up a piano. A stable piano will be more enjoyable to play and listen to while rewarding your fingers with a consistent, proper touch."

Cheers,

David