A hornpipe is a traditional dance tune. Usually played with a 'swung' feel if in 4/4 but not usually in 3/2.

The Old Lancashire Hornpipe

The particular version of the tune transcribed below is in 3/2 time signature and in D Major.

The tabbed melody

My arrangement

Audio example of my arrangement (with some variation)

References

A collection of versions at The Session
EFDSS 3/2 Hornpipes Guide
Wikipedia: Hornpipe
Accordian video example