Spectral manipulation has increasingly established as a common method in audio editing. Based on the analytical visualization of audio material as a spectrogram, it offers interactive methods that are visually comprehensible. Consequently, it can be used to extend methods of music production by discovering novel techniques or by revisiting known ones. Thereby, granular synthesis has high potential in gaining functionality when thought and used in a spectral domain interface. Here, granular spectral synthesis is proposed and how it takes advantage is discussed.