Using your D'Angelico Premier Lexington LS acoustic guitar is a breeze. First, tune it up using the onboard tuner. It'll help you get the right pitch quickly. When you're ready to play, hold the guitar comfortably with the slim C - shape neck in your hands. The strings are D'Addario EXP - 16 (12 - 53), which give a great sound. As for the preamp, you can use it when you're performing on stage to adjust the sound as you like. Now, for the maintenance part. Keep the guitar in a dry and cool place. Avoid exposing it to extreme temperatures or humidity, as this can damage the mahogany body. Wipe the strings with a soft cloth after each use to keep them clean. And check the tuning machines regularly to make sure they're working properly. With these tips, your guitar will stay in great shape and keep sounding amazing for a long time.