Definition of free-blowing in US English:

free-blowing

adjective

  • 1That blows freely.

  • 2Of a wind instrument: that readily allows the passage of air, or easily produces (a clear) sound.

  • 3Chiefly Jazz. Of a musician or ensemble: that plays music (especially on a wind instrument or instruments) in an unrestrained, unstructured, or improvisational style.

Origin

Mid 18th century. From free + blowing.

Pronunciation

free-blowing

/ˌfriːˈbləʊɪŋ/