another recently composed one is Indiana

Fareweel Tae Tarwathie (not exactly emigrant; he'll come home from the whaling)

The Road to Drumleman

Soraidh bhuam gu Barraidh(on Capercaillie, Crosswinds)
also at http://www.capercaillie.co.uk/lyrics/:(album: The Blood is Strong):
O Mo Dhuthaich
DEAN CADALAN SAMHACH
'S FHADA LEAM AN OIDHCHE GHEAMHRAIDH

Fàgail Barraidh
Tri Fichead Bliadhna 's a Tri [can anyone get me the words for this one?]
an t-Eilean mu Trath