Definition of C sharp

C# (see section on name, pronunciation) is an object-oriented programming language developed by Microsoft as part of the .NET initiative and later approved as a standard by ECMA and ISO. Anders Hejlsberg leads development of the C# language, which has a procedural, object-oriented syntax based on C++ and includes aspects of several other programming languages (most notably Delphi and Java) with a particular emphasis on simplification.

Also see: C-sharp minor, or C major.

C-sharp major is a major scale based on C-sharp, consisting of the pitches C-sharp, D-sharp, E-sharp (enharmonic to F natural), F-sharp, G-sharp, A-sharp, B-sharp (enharmonic to C-natural) and C-sharp. Its key signature has seven sharps (see below: Scales and keys). [The note C-sharp is a semitone between C & D.]