Sentence:  He muttered an exclamation in Gaelic, strode across the floor, and then, with an air of dogged resolution, as if fixed and prepared to see the scene to an end, sate himself down on the oak table, and whistled a <WSD>strathspey</WSD>. 
Meaning of the word marked with <WSD> tags:  A piece of music composed for or in the rhythm of this dance.