IF anyone is interested in learning how to pronounce Guru Granth Sahib Ji properly, santhiya from Baba Mohan Singh ji's Taksaal is now available on Gurmatveechar.com
[gurmatveechar.com]. click on Bhindran Taksal Santhya

Also, Giani Thakur Singh ji has a video of the entire nitnaym santhiya including pronunciation of Gurmukhi letters and lagaa matray.
[www.gurbaniupdesh.org] click on katha --> giani Thakur Singh --> Suddh Santhiya