Does this mean you increase the BPM in the beginning of the song up to like 1000 to and when you are finished change it back to i.e. 120 and add a huge delay to song.ini?
1000 BPM?
No no... :p Ok, this is how I do it... In Audacity, I make 1-3 seconds silence, so when fretting it, you just set the Bpm to whatever it should be in the song ~about! Then put the first note, on the nearest line you hear when the song start... then go back and change the BPM abit so it fits with the first note... (it doesn't have to be a measure line) Because, you can change the timesignature(fat lines) with "," and "." At least on my keyboard... so just change the TS, so the first note is on the fat line! The notes USUALLY starts on a measure line, so then you need to put the note on the "fat" line...
Or you can change the start time...but I don't recommend it, as it puts a extra measure line at the start...and when playing, it can start with 1500bpm, and slowly throw all notes in your face, so I recommend the one I wrote about eralier...