Hi Merrill
Your post says LEAD SHEET and lyrics. I scanned 1500 or more into my laptop. For midi's,I use MidiNotate to scroll the lead sheet with lyrics. You can play any parts you want through the laptop, or mute the parts and play as you wish.

Bernie
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pa4X 76 ,SX900, Audya 76,Yamaha S970 , vArranger, Hammond SK1, Ketron SD40, Centerpoint Space Station, Bose compact