Hi Don. Thank you for posting your music.it was enjoyable to listen to. I think Chas has provided some really nice pointers to how you can use your arranger more creatively and add different colours and flavours to the song to make it more complimentary to your voice. I often find that if you strip down the range to just the bass and drums or even take out the drums all together initially. You can then build up the arrangement by simply feeding back in parts of the same accompaniment without playing a different style variation . This effectively gives masses of options rather than just the set four variations that most keyboards come with .

I often listen to different arrangements of songs that I would like to cover just to give me inspiration. I stumbled across probably my favourite arrangement of this song performed by Ollie Woodson from the temptations . This inspired me immensely and I hope it does for you to. Listen carefully to the chord variations and the delicate colours at the beginning of the song and how it builds up into this massive gospel sounding crescendo . Obviously Mr Woodsons voice is off the charts but if you can, ignore his voice and listen to the arrangement it will give you some ideas of the transitional chords used from the main chords that most players tend to stick to

http://youtu.be/VUzrwBrm8zU