The song Tum Ho from rockstar is a genius creation and lemme explain that
I'm high as a kite right now, and rn is the best time to shit some heavy discussion. So in the movie rockstar, every song has a certain role, or let's say a certain part or development of Jordan. Tum Ho was the entire romantic base of Jordan for Heer, after he was properly aware of his feelings.
Such a big role for one song, yet surprisingly you never see it in the core movie (you see it at the end). Even for the moments you encounter the song, it is in bits and pieces. But why? (Will come to this later)
For the times it was shown in the core movie you see it in bits and pieces. You see it in Jordan's guitar performance, but instead of the soft song, you hear a loud distorted version on an elec guitar. Symbolic of his raw emotions he hasn't processed yet. Also notice how that performance has soft choir vocals behind Jordan. But they are hard to hear with such a heavy electric guitar overshadowing them. Its like there's a part of Jordan which has processed more, but most of his emotions are still very raw.
The scene where he kissed Heer, but Heer denied. Finer emotions, as you can hear vocals and flute, but still not complete.
Finally at the end of the movie, when Jordan is no longer ambitious for his music, no longer afraid of his career ruining, misbehaving with the same audience he used to sing for at bus stops; but all that's left of him is a man in despair who couldn't get his love, the complete Tum Ho plays.
Notice how all songs were in a real world, but Tum Ho was in a fantasy. You may argue that it was the location where things escalated between them, but still their actions seemed more fantasy and imaginary. As if Jordan is just imagining, a happy life with Heer in a world kinder than ours. The song shows itself fully in a fantasy, but only in bits in the real world. Because Jordan's love was never fulfilled in the real world.
Speaking about the song, notice how the lyrics of the very first stanza plays at how Jordan is happy that Heer is with him and yet sad that she isn't. Bcz isn't it the exact thing which broke him completely. Heer chose Jordan over her husband, everything was improving for Jordan. And then suddenly bam, she is no longer with him.
Also look at the chords positioning for the song. The first two chords F major and A# major. And the next line goes with F major as you expect, and then bam A minor and A major. Anyway i cant think of a proper conclusion, so yeah that's it.