Use getValueString with defaults.
Use a local for intermediate calculations of whether to analyze.
Get rid of m_bShouldAnalyze member variable in AnalyserBeats and AnalyserKey. Instead use m_pVamp to indicate whether the analyser is enabled.
Rename to pConfig.
Remove cast.
_config -> pConfig.
Get rid of spaces between function name and left-paren in AudioTagger.
Spacing.
Var name.
Parameter names and delete leaked control.