Repeat main riff throughout the entire song, with a few rests 
and variations thrown in.

Main Riff

  E  E  S  q  S  S  E  S  E    Q   S  q  S  S  E  S  E
|------16-16----16-16-14-16-|-----16-16----16-16-14-16-|
|---------------------------|--------------------------|
|-0-14----------------------|-14-----------------------|
|---------------------------|--------------------------|

[ Tab from: https://www.guitartabs.cc/tabs/p/prince/musicology_btab.html ]
   Q   S  q  S  S  E  S  E   * H.      Q
|-----16-16----16-16-14-16-|----------------|
|--------------------------|----------------|
|-14-----------------------|--14\-----------|
|--------------------------|----------------|


*Ending Variations

    Q  E  E  S  S  S  S  S  S  S  S   e q E H
|-----16-16----------14-16-14-------|--------------|
|--------------14-16----------16-14-|--------------|
|-/14-------14----------------------|-0-2----------|
|-----------------------------------|-------2\-----|