I'm not familiar with Gamalan, but here are some winter songs:

Let It Snow!
A Hasty Shade Of Winter (Is that the title? -- Simon and Garfunkel)
Winter Wonderland
In The Bleak Midwinter
Frosty The Snowman
Button Up Your Overcoat
Urge For Goin'
Baby, It's Cold Outside
Over The River and Through The Woods