Sandy:

You can find three differing sets of words for Loch Lomond on the DT database,  here   here  and  here: unless, of course, you'd like some practice in searching the database; in which case, go to the box labelled Digitrad and Forum Search at the top left of the page and type in "loch lomond".

There is a midi file of the tune that you can listen to, but I can't help you with the written music at the moment.  I'm sure someone else will be able to point you the right way.  I failed miserably to find it at the Levy site:  could you perhaps give us a more specific URL, Alice?  

The song, incidentally, is attributed to Lady Scott (née Alicia Spottiswoode), 1810-1900.

Sheila:  Hamish Henderson is alive and kicking, and celebrated his 80th Birthday last November.  Greentrax will be releasing a CD of the concert in the spring.

Malcolm