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-rw-r--r--libs/evoral/evoral/Control.hpp7
1 files changed, 7 insertions, 0 deletions
diff --git a/libs/evoral/evoral/Control.hpp b/libs/evoral/evoral/Control.hpp
index 5c45823184..d09cb952f1 100644
--- a/libs/evoral/evoral/Control.hpp
+++ b/libs/evoral/evoral/Control.hpp
@@ -31,6 +31,13 @@ namespace Evoral {
class ControlList;
class Transport;
+/** Base class representing some kind of (automatable) control; a fader's gain,
+ * for example, or a compressor plugin's threshold.
+ *
+ * The class knows the Evoral::Parameter that it is controlling, and has
+ * a list of values for automation.
+ */
+
class Control
{
public: