Vedanga Siksha is the first thing to be learnt, yet no one is teaching or learning it anywhere it appears. (As far as I know, I am the only one struggling with it.)
This is the Ganapati Mantram. These are the swaras as per the Saswara Veda Mantrah publication of Sri Rama Krishna Math. This is an audio recording I have done. I want you, not to hunt for flaws.. but to observe the intonation of the letters marked with lines below and on the top.