NYC-based singer-songwriter, multi-instrumentalist and producer Jonny Polonsky presents ‘Sign in The Window’, an upbeat and sanguine offering from his new ‘Kingdom of Sleep’ LP with video directed by photographylegend Paul Elledge (Rolling Stone, Forbes) and edited by Neal Ostrovsky. This follows Polonsky’s earlier-released singles ‘The Weeping Souls’ and ‘Ghost Like Soul’ featuring Cedric…