Here's some stuff that can help with Congregational Songs and shouting music:
Alternate minor 1 and minor 2 chords
Key Eb
Db-Gb-Bb or Eb-Gb-Bb (start high on keyboard, go all the way down, go all the way back up)
C-F-Ab
Bb-Eb-Gb
Ab-C-F
Gb-Bb-Eb
F-Ab-C
(repeat)
Alternate major 1 and minor 2 chords
Key Eb
Eb-G-Bb (start high on keyboard, go all the way down, go all the way back up)
C-F-Ab
Bb-Eb-G
Ab-C-F
G-Bb-Eb
F-Ab-C
(repeat)
Various Bass Lines
Key Eb
Eb, G, Ab, A, Bb, C, Db, D, Eb
Eb, F, Gb, G, Ab, C, Db, D, Eb
Eb, G, Bb, C, Eb, C, Bb, G, Eb
Eb, G, Bb, A, Ab, C, Db, D, Eb
Eb, Db, Bb, A, Ab, C, Db, D, Eb
Eb, C, Bb, A, Ab, C, Db, D, Eb
Eb, F, Gb, Bb, Ab, C, Db, D, Eb
Eb, F, Gb, G, Ab, Gb, F, Fb, Eb
Eb, F, Gb, G, Ab, G, Ab, A, Bb, Db, Eb, Gb, Ab, C, Db, D, Eb
Bb, Cb, C, Gb, F, C, Bb, Bb, Eb
Bb, A, Bb, Cb, C, Cb, Bb, Ab, A, C, Eb, Gb, F, Eb, C, Eb
Eb, Db, C, Gb, F, C, Bb, C, Db, D, Eb