The song title "Passing Through" is one of the great choices in musical history. Right there with "Changes".

However, there are dozens of different song with that (or similar) titles , such as:

          Passing Through
         
          Just Passing Through        
         
          Only Passing Through        

          Passin' Through        

Almost as many as "Changes".

The "Passing Through" on an Earl Scruggs tribute record, with Joan Baez, Johnny Cash, Leonard Cohen, Loudon Wainwright III, Charlie Daniels, and others is a gem. Don't think that record made it to CD.