Is the English horn a clarinet or an oboe

The English horn is an oboe instrument.

The English wind is actually a derivative of the oboe, and the name is actually an error, as the previous generation misunderstood the angle as anglais, leading to this fallacy, which is still in use today. It has a range five degrees lower than that of the oboe, and has a more subtle and darker sound, as if it were burdened with an endless stream of sadness.

But the English winds are the most agile and quickest breakers of any orchestral instrument.

As for the clarinet, in contrast, the timbre is very different, and the range is much wider, at least in three and a half octaves or more, and the contrast in timbre between the different ranges varies greatly, and the richness, suppleness, and elasticity are the main features.