Sikh music or Shabad kirtan is Kirtan-style singing of hymns or Shabad from the Guru Granth Sahib, the central text of Sikhism.
It began in the late 16th century as the musical expression of mystical poetry, accompanied by a musical instrument rabab, by Bhai Mardana an early follower of Guru Nanak –the founder of Sikhism. Following Nanak, all the Sikh gurus sang in the then-prevalent classical and folk music styles, accompanied by stringed and percussion instruments. The style was where the text was of prime significance and the music played a supporting, albeit important, role. The Gurus specified the raag for each hymn in the Sikh sacred scripture, the Guru Granth Sahib.
Significant efforts have been under way since the 1970s to revive the rich Sikh music tradition initiated and developed by the Sikh Gurus. Various terms used to refer to this tradition include Shabad keertan parampara, Gurbani sangeet parampara and Gurmat sangeet.
Devotional singing in Sikhism is called a Kirtan. It is typically performed at Gurdwaras (Sikh temples), wherein Sikh scriptures and legends are recited in a song, set to a certain raga and accompanied with music. A Shabad Kirtan refers to the musical recitation of the Guru Granth Sahib, the primary scripture in the Sikhism tradition. The Shabad Kirtan is silently listened to by the gathered congregation.
A Kirtan in Sikh history has been the musical analog of Kathas recitation, both preferably performed by ragi jatha, or professional trained performers. A Sikh Kirtan is a religious, aesthetic and social event, usually held in a congregational setting on Sundays or over certain festivals to honor the historical Gurus, but major temples in the Sikh tradition recite Kirtan everyday as a mark of daily bhakti (devotional remembrance) of God's name. The congregational setting is called a Sangat or Satsang, a word that in ancient Indian texts means "like minded individuals, or fellow travelers on a spiritual journey".