Abstract: A keyboard instrument is provided in order to further improve expressiveness as a keyboard instrument while ease in performing is ensured. In the keyboard, a plurality of keys is lined up in order, and each supported so as to be pivotable about a supporting point. The keys include first keys, second keys, and third keys. The first keys, the second keys, and the third keys constitute key portions, in which the first keys, the second keys, and the third keys are respectively lined up according to types of the keys in a lateral direction and disposed in order of the first keys, the second keys, and the third keys from a front side. The key portions are disposed on a plurality of steps in an up-and-down direction.