This tutorial uses the class smpl-1, which, as explained in the previous tutorial, does not load a sound file into a GEN01 table, but reads it directly from the disk. In this case, the input afil only needs the specification of the sound file.
The sound file can be passed to the OMChroma smpl-1 class by means of:
The workspace you are using must be named "OMChroma_Tutorial" or insert your workspace's name and its path.