Towards better Davening and Torah Learning
There is an interesting pronunciation debate on something that appears in Haazinu. There is a big HEI followed by a space and then LAMED prefixed to G-d's name. Although the HEI stands alone in the written text, when read it is considered part of the word. HEI-LAMED-YUD-HEI-VAV-HEI.

Minchat Shai (a very well-respected authority on pronunciation and DIK- DUK) says the HEI/PATACH and the LAMED/SH'VA NACH form the first syllable of the word - HAL. the rest of the word is the regular pronunciation of G-d's name, ADO-NOI. HAL-ADO...

Another authority says that the HEI should be pronounced in its own syllable, and then the LAMED/SH'VA NA is attached to G-d's name. The problem is that a LAMED/SH'VA cannot be followed by a CHATAF-PATACH which is what is under the ALEF of the pronunciation of G-d's name. Maybe it would change to LA, in which case the ALEF falls silent. HA-LADO...