I would like to suggest to add Javanese to the language list.
Javanese language has almost 100 million speakers worldwide, which concentrate in its homeland Indonesia. Although the official language is Indonesian (Bahasa Indonesia), which is mutual inteligible with Malaysian, Bruneian as well as minority in Singapore and Southern Thailand, but Javanese etnic comprise more than 40% of Indonesian population, which make it as one of the largest ethnic group living in the archipelago. It has also significant population in Suriname, New Caledonia, and The Netherlands.
The language itself is not dialect of Malay languages (Malaysian, Indonesian) but has huge difference in gramatical aspect as well as the vocabulary (not mutually inteligible).
Being one of the largest ethnic group in its homeland, Indonesia, there are more and more arts and culture represent through musics, songs, TV show and being popular. And I am sure there will be quite some of lyrics in Javanese language, which would be added (from Indonesia and Suriname)
For further information about the Javanese people :
And Javanese language :
Even in Lyricstranslate, I have notice an Indonesian Singer who sing mostly in Javanese.
One sing which actually sung in Javanese, but listed as Indonesian :
(Please add Javanese instead of Indonesian to avoid misunderstanding. Or if it not possible just list as "others" or "unknown")
Thank you !