A prayer to Lord Ganesha composed by Adhi Sankara usually sung on all Sankatahara Vinayaka Chathurthi days. Here is an earnest attempt to render this prayer setting it to possibly raag Saranga. I would expect singer s/devotees of Ganesha to render this song in the same raag as a video response.
“Ajam Nirvikalpam Niraakaaramekam
Neraanandhamanandham Adhvaitha Poornam
Param Nirgunam Nirvisesham Nireeham
ParaBrahma roopam Ganesham Bhajema.
Gunaatheethamanam Chidhananda roopam
chidha bhasakamsarvagam gnana gamyam
munidhyeyam aakasa roopam paresham
paraBrahma roopam Ganesham bhajema.
Jagath kaaranam kaaran gnana roopam
suraadhim sukhadhim gunesam ganesam
jagathwaapinam viswa vandhyam suresham
para Brahma roopam Ganesham bhaje ma.”