Using your Fender FA-15 guitar is easy. First, take it out of the gig bag. Tune the guitar using the die-cast tuning machines until it sounds right. You can start strumming simple chords right away. When you're done playing, put it back in the gig bag to protect it. For maintenance, keep the guitar in a dry place away from extreme temperatures. Wipe the strings with a soft cloth after each use to keep them in good condition. Check the tuning regularly, especially if you've been playing a lot. If you notice any issues, like a loose string or a strange sound, it might be time to have it checked by a professional.