I came across 'swaras' a few days ago:
Are Swaras (see this answer which explains them) only applicable to vedic chants, what about the stotras in tantric texts?
Also what about Swaras of stotras found within Mahabharata or Ramayana? Same thing for purana.
I couldn't find Swaras for Aditya Hridyam and Vishnu Sahasranamam. If they exist, do post the link for the same.