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app.py

@@ -276,8 +276,9 @@ def gpu_stream(session_id):
                     else:
                         nvec.append(-1)                        # masked (model free)
                 drm = [0] if drumless else [-1]                # 0 no-drum / -1 masked
+                cfg_notes_v = 7.0 if (unmask >= 127 and not active) else c.get("cfg_notes", 2.4)   # solo + no note held -> ramp cfg_notes to max bin (native JamApp suppresses melody)
                 cfgs = [discretize_cfg(c.get("cfg_musiccoca", 1.6), 0.2, 40),
-                        discretize_cfg(c.get("cfg_notes", 2.4), 0.2, 40),
+                        discretize_cfg(cfg_notes_v, 0.2, 40),
                         discretize_cfg(c.get("cfg_drums", 4.0), 1.0, 8)]
                 cond = model._conditioning((list(cur_tokens) + [-1] * model.num_musiccoca)[:model.num_musiccoca],
                                            nvec, drm, cfgs)