     private var content = [Frequency](repeating: 1.0, count: midiNoteCount)
     private var frequencies = [Frequency]()
 
-    // default is 12ET
+    /// Initialization for standard default 12 tone equal temperament
     public override init() {
         super.init()
         twelveToneEqualTemperament()
     }
 
-    // getter
+    /// Pull out frequency information for a given note number
     public func frequency(forNoteNumber noteNumber: MIDINoteNumber) -> Frequency {
         return content[Int(noteNumber)]
     }
-    // setter
+    
+    /// Set frequency of a given note number
     public func setFrequency(_ frequency: Frequency, at noteNumber: MIDINoteNumber) {
         content[Int(noteNumber)] = frequency
     }
 
-    // Default tuning table is 12ET.
-    // Note this is [nearly] equivalent to 440.0*exp2((noteNumber - 69.0)/12.0))
+    /// Default tuning table is 12ET.
+    /// Note this is [nearly] equivalent to 440.0*exp2((noteNumber - 69.0)/12.0))
     public func twelveToneEqualTemperament() {
         var equalTempermentFrequencies = [Frequency](repeatElement(1.0, count: 12))
         for i in 0 ... 11 {

        tuningTable(fromFrequencies: equalTempermentFrequencies)
    }

    // create the tuning using the input frequencies
    public func tuningTable(fromFrequencies inputFrequencies: [Frequency]) {
        if inputFrequencies.isEmpty {
            AKLog("No input frequencies")

        return trimmedString
    }

    /// Get frequencies from a Scala string
    open func frequencies(fromScalaString rawStr: String?) -> [Frequency]? {
        guard let inputStr = rawStr else {
            return nil
