Using your Ernie Ball Music Man John Petrucci Majesty Electric Guitar is a breeze. First, make sure the strings are properly tuned using the Schaller M6 - IND locking tuning machines. When you're ready to play, adjust the in - line control knobs to get the sound you want. The advanced pickup switching system allows you to switch between different pickups smoothly. For the best performance, use the recommended 10p - 13p - 17p - 26 - 36 - 46 strings. As for maintenance, keep the guitar in a dry and stable environment. Wipe the body with a soft cloth after each use to remove fingerprints and dust. Check the bridge and tuning machines regularly to ensure they are tight and working properly. And don't forget to change the strings periodically for optimal sound quality.