One of the easiest places to get great NH songs free is on a little known site called Wikifonia.org

There you can find many Standards of the past in the form of lead sheets containing melody line, chords and lyrics in pdf format. You can even transpose the song into any key before downloading or printing it out.

A few of the Synth keyboard (one-man-band) NH performers use this site as a song retrieval resource.

Nick