Also I often check the BPM on the website of TuneBat before I edit a song, so I can be sure that the BPM fits well, is multiplied correctly and I can avoid mistakes caused by an inaccurate BPM. TuneBat is pretty helpful there, if you are searching for Key, BPM and that stuff
Haha okay, thank you for your advice Suii & fepo ! But indeed I'm a music producer and have some knowledge about BPM, rhythm and so on.
When I heard the song in the radio, I always had the feeling already that the song isn't produced in a maintaining tempo, so I've checked that in my song-making-program. And actually, the song starts to change from 117 BPM to like 116.5 in the first chorus, that repeats through the entire song, until the end (obviously) gets much slower. Before the slowed and pitched outro starts, the BPM is already at around 115 BPM, it's a stylistic thing of the production and meant to be that way I guess, they wanted to make the music like the lyrics (really great idea imo): "You'd have to stop the world just to stop the feeling", so they slow down the song step by step like the world would stop rotating.
So, I'm pretty sure there is nothing you can do to put all the notes perfectly on grid, therefore it would be necessary to change the beat while the editor is playing and I think you can only type one single BPM in for the whole song. :')
If I have the correct BPM, I can
synchronise the song correctly to the end.
This is sometimes even possible with a BPM that is off.
Normalise a BPM is ever a Integer.
Example: 128 or 300 etc.
Not with a Comma like 128,24 etc.
Dragon33 - That happens a lot. I suspect some tool/editor does not respect the decimal part of the #BPM, as a lot of songs slowly drift at the end. But just nudging the BPM by +/- 0.5 (sometimes more) fixes it. Find one of the latest lyrics that shows the lag, then adjust the #BPM to correct that lyric, and _generally_ that fixes the rest of the song. The song editor Yass, writes the BPM with a comma [,] instead of a decimal point too (which is probably normal for the country Yass was written in), but ignorant software doesn't realise, truncating the number.
fepo great! Then you know what I'm talking about 
