Jehovah is an errorneous construct, lately an artificial name, without following the rules of
credible language study, it sounds perhaps beautiful and got modern because nobody was aware of the error, and its usage was a misrispect of the old tradition not to spell the holy name of god. But as it is not the real spelling of Gods name in hebrew anyway (as it was spelled by the Highpriest), even this doesnt matter, and God will not be angry about it.
Its usage in songs or art can be treated or seen as an artwork or unnecessary hobby or overexageration of those not aware of history of the name. Its a name like all other names to a certain extent. It is no capital sin though to use the name as" jehovah", but it is not correct or respectful towards Jews.
But it is a sin to make false prophesies under reference of this name, while identifiying it as gods only own name. And to bring separtion into families by shunning under reference of this "holy" name.
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The Hebrew vowel points of Adonai were added to the Tetragrammaton by the Masoretes, and the resulting form was transliterated around the 12th century as Yehowah.[1] The derived forms Iehouah and Jehovah first appeared in the 16th century.
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The most widespread theory is that the Hebrew term יְהֹוָה has the vowel points of אֲדֹנָי (adonai).[27] Using the vowels of adonai, the composite hataf patah ֲ under theguttural alef א becomes a sheva ְ under the yod י, the holam ֹ is placed over the first he ה, and the qamats ָ is placed under the vav ו, giving יְהֹוָה (Jehovah). When the two names, יהוה and אדני, occur together, the former is pointed with a hataf segol ֱ under the yod י and a hiriq ִ under the second he ה, giving יֱהֹוִה, to indicate that it is to be read as (elohim) in order to avoid adonai being repeated
https://en.wikipedia.org/wiki/Jehovah
Based on this reasoning, the form יְהֹוָה (Jehovah) has been characterized by some as a "hybrid form",[7][18] and even "a philological impossibility".[19