To convert ROL files to CMF files you need to have the SoundBlaster
instrument files (SBI) or the Adlib instrument files (INS). 
The command syntax is :

ROL2CMF <ROL-file> <CMF-file> </Ippp | /Bppp> {option}

where items in < > must be specified 
      items separated by | means either one of them must be specified 
      items in { } are optional

<ROL-file>  :  name of the input ROL file
<CMF-file>  :  name of the output CMF file
/Ippp       :  path of the INS files
/Bppp       :  path of the SBI files

{option} are 
/Vnnn       :  nnn is the maximum volume level, default is 127
/Pttt       :  ttt is the song title up to 31 characters
/Cnnn       :  nnn is the system clock rate, default is 96Hz
/Tnnn       :  nnn is the basic music tempo, default is the same as
               the ROL file now being used.