That's the whole point of Nodal; you represent musical patterns (and control flow) with graphical means. Entering numbers is close to Midi event lists and has little to do with Nodal's approach. Max/Pd are great tools, but focus on the processing and signal flow aspect (i.e. the machine which generates the music/noise), not the representation of the music.
> you have to use numbers instead of line lengths
That's the whole point of Nodal; you represent musical patterns (and control flow) with graphical means. Entering numbers is close to Midi event lists and has little to do with Nodal's approach. Max/Pd are great tools, but focus on the processing and signal flow aspect (i.e. the machine which generates the music/noise), not the representation of the music.