Can you use the Worship styles from the Tyros 2 (I use Slow and Medium regularly in church). Guitar serenade is a great 3/4 style, as is acoustic ballad. I use 6-8Modern for a 6/8 style, and Easy and 8Beat ballad in a 2/2 tempo for standard hymns. Cool8Beat and Live8Beat are great for the more up-tempo songs, as is SVP Offer It Up.
God bless you, you'll do great.
Graham
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Graham, Korg Pa1000, Korg G1 Air, Countryman E6, Roland BA330, 2 x Roland CM-30, , Mackie SRM150