Issue: Same tone for all graph in python + Safari

User input:

import accessible_graph_pkg as AG
X = [12, 12, 15, 18, 20, 25, 18, 12]
AG.accessibleGraphs.getAccessibleGraph(X)

Running this brings up a safari window where I can arrow right and left, however the sounds are at the same tone.

Reproduce the issue with the shown Python call, the sample values, and Safari, then trace the graph audio behavior starting at accessible_graph_pkg and accessibleGraphs.getAccessibleGraph(X). Confirm that different graph values produce distinguishable tones in Safari, and add or update a regression test if the project provides one.

Written by the indexing model from the issue text.