Most worship leaders use an acoustic steel-string guitar. The video in the post will show you the tools you need to use. It’s much easier to change steel-strings with a string winder.
Most string winders, like the one in this picture have an end that can help you remove the pegs that are seated in the bridge.
It helps to have nice guitar strings too. Here’s the video:
My favorite guitar tuner is the Intellitouch tuner. What I love about this tuner is that you can tune your guitar accurately in a very noisy room. It literally clamps to the headstock of your guitar and senses the pitches by the vibration of the instrument.
This diagram shows where on the fretboard you hold down the place to tune the open string. For example, there is a ‘5’ on the 6th string, 5th fret to show it is the same pitch as the Fifth string open.
One of the best ways to warm-up before you start playing is by playing guitar scales. It gives you an opportunity to concentrate on your guitar technique without thinking about a song or chords.
If not secured, nylon strings can easily slip. Here’s a brief video showing you a secure way of stringing a classical guitar.