Thanks Tootler. With the help of Grishka I've now got it figured. I'm on Mint 17.3 and have got Musescore 2.0.3 as well.

ABCJ will do editing on the fly, that is as you edit you see the score change, but it will not do more than one part at a time. It will do song books.

Five Line Skink will do multi parts but you have to save to see editing changes. They both play the tunes and are easy to use.

Cheers

Stan.