Shiva Purana
गीतैर्वाद्यैस्तथा नृत्यैर्भक्तिभावसमन्वितः ॥ पूजनं प्रथमे यामे कृत्वा मंत्रं जपेद्बुधः ॥ ३५॥
The intelligent devotee shall repeat the mantras after performing worship in the first 3-hour period with music, songs, dances and devotional services.
english translation
gItairvAdyaistathA nRtyairbhaktibhAvasamanvitaH ॥ pUjanaM prathame yAme kRtvA maMtraM japedbudhaH ॥ 35॥
hk transliteration by Sanscript