What is to perform, as a tune, by playing on a pipe, flute, fife, etc.; to utter in the shrill tone of a pipe. A robin . . . was piping a few querulous notes. W. Irving called?

pipe — To perform, as a tune, by playing on a pipe, flute, fife, etc.; to utter in the shrill tone of a pipe. A robin . . . was piping a few querulous notes. W. Irving. (Webster's 1913.)