I am very happy with SoundStudio I V1.01: I successfully used it to develop 20 songs in *.SNG files. But I now need a version of SoundStudio II that I can load onto my MacBook Pro, with Mojave macOS 10.14.6, that will let me add an audio track for singing to each of my *.SNG files and then combine each track of any one *.SNG file into a standard file common to internet users, such as *.WAV or
*.MP3 .