digraph G
{
  bgcolor="transparent";
  edge [fontname="FreeSans",fontsize="10",labelfontname="FreeSans",labelfontsize="10"];
  node [fontname="FreeSans",fontsize="10",shape=record];
  Node1 [label="O_label",height=0.2,width=0.4,color="black", fillcolor="grey75", style="filled" fontcolor="black"];
  Node1 -> Node2 [dir=back,color="midnightblue",fontsize="10",style="solid",fontname="FreeSans"];
  Node2 [label="O_char",height=0.2,width=0.4,color="black",URL="$class_o__char.html",tooltip="State of a letter sequence."];
  Node1 -> Node3 [dir=back,color="midnightblue",fontsize="10",style="solid",fontname="FreeSans"];
  Node3 [label="O_MIDI_mono",height=0.2,width=0.4,color="black",URL="$class_o___m_i_d_i__mono.html",tooltip="State of a monophonic MIDI sequence."];
  Node1 -> Node4 [dir=back,color="midnightblue",fontsize="10",style="solid",fontname="FreeSans"];
  Node4 [label="O_spectral",height=0.2,width=0.4,color="black",URL="$class_o__spectral.html",tooltip="State of a spectral sequence."];
}
