Playing mp3 in MacOS 7+ and IOS 4+?

Question

iOS

Good evening! Two questions are of interest:
1. Are there regular means for implementing smooth transitions between tracks when the previous one fades out, and the new one starts playing with increasing volume? Or ideas how to do it?
2. By what means can you track music playback in iTunes, so that if music plays in iTunes. not interrupt it built into the program?
First of all, I am interested in a universal tool for MacOS 7+ and IOS 4+. But it's also suitable for everyone.

Answer 1

1. There are such funds. In the iTunes settings, select the "Playback" tab, check the "Fade Songs" checkbox, and through trial and error, select the crossfading value you like.
Live, however, did not check, the music is not on my poppy.

Answer 2

To get iTunes status on MacOS, you can run the following script:

property iTunesRunning : false
property iTunesState : ""

tell application "System Events"
  if "iTunes" is in (name of application processes) then set iTunesRunning to true
end tell

if iTunesRunning then
  tell application "iTunes" to set iTunesState to player state as string
else
  set iTunesState to "not running"
end if

return iTunesState

returnsnot running | playing | paused | stopped

Answer 3

2. By what means can you track music playback in iTunes, so that if music plays in iTunes. not interrupt it built into the program?

Are you interested in not for development purposes by any chance?

Answer 4

en.wikipedia.org/wiki/System_7