Well, I _did_ practice for a long time. I'm new to keys (couple of years) but I get by okay. I worked up I don't know how many songs. Ready to go. Push the buttons to set 'em up and go. I'd either play keys along with the style auto-accompaniment or I'd record the song, save to disk, play back from disk and play guitar over the top. I probably have a couple of hundred songs ready to go. Kinda need a keyboard first.
Main question is regarding whether to do it at all.
As for "sounds," it is just my feeble opinion but I have never been comfortable AT ALL playing leads on a keyboard with anything that is not a normal keyboard sound. No guitar sounds, no sax. I don't fault anyone who does. I have a strong opinion about it but if it works for someone, I don't knock it.
Bill In Dayton said: "In some places they won't care...other places it may not work real well."
If you care to comment on that, that's what I'm looking for. Starting/stopping songs, yep, that is a big issue for me but I'm mainly just trying to figure out if a richer sound means more gigs.
Let me give you an example. I play all kinds of stuff. But I was messing around with "Danny Boy," as played by Eric Clapton. Fingerstyle guitar. I can play this on acoustic only and I think you'd enjoy it. I also whistle the melody and that's cool. I have a good whistler. HOWEVER... back when I had my keyboard, when I added strings to it (and I could add a thumping bass drum like E.C. did) and it's seriously cool. It's another dimension to the song. It's beautiful either way but with strings added... ah.
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Bill