Second, I'm dying of laughter! Sinhaji, Anu, SARAH, Appada and Punjiniji 🤣 Too good! 😉 The rest have also contributed some awesome posts. 😃
Can't say that I've noticed four distinct "genres" of music from HR. In both style and content. (As someone had pointed out in a thread, genre speaks to the content of the song, not the composition style 😆)
HR seems to have taken his own advice rather seriously over the years. In the early part of his career there was still some variety - copied or original, kaam alag tha. Now he only plagiarizes himself. Ek formula kuch time ke liye hit hua toh now he's sticking to just that and within another 2 years people will be completely sick of it (can't wait till they join us! 😉).
His compositions are more tolerable when sung by others... however, 2 things can not be ignored. 1) They still sound uncomfortably the same as any of his other compositions, though the voice is more tolerable. 2) If they are sung in his presence, he will seize the opportunity to re-sing the song himself 😕
It was pointed out that others like Vinit and Debojit from C'05 usually stuck to one singer (Sonu or Kishoreda) for the most part of their journey through the show. It was given as an example of sticking to one genre.. I beg to differ. Singing songs of one singer doesn't imply singing within the same genre. Both Sonu and Kishoreda have sung a variety of songs in various genres and styles. However, limiting yourself to the likes of Rahat Fateh Ali Khan limits you to a genre as that is his speciality and his work. He wasn't trained to be a playback singer. He was trained to carry on the tradition of sufi/qawwali music.
Therein lies the difference between choosing a particular playback singer (barring HR) and an ustad or some one like RFAK saab.