Added Tablature and Fretboard examples

Added Tablature and Fretboard examples.
Cleaned up main view.
Removed a few deprecations.

Author: NickCulbertson

Cookbook/CookbookCommon/Package.swift

@@ -20,13 +20,16 @@ let package = Package(
         .package(url: "https://github.com/AudioKit/Waveform",          branch: "visionos"),
         .package(url: "https://github.com/AudioKit/Flow",              from: "1.0.0"),
         .package(url: "https://github.com/AudioKit/PianoRoll",         from: "1.0.0"),
-        .package(url: "https://github.com/orchetect/MIDIKit",          from: "0.9.7"),
+        .package(url: "https://github.com/orchetect/MIDIKit",          from: "0.11.0"),
+        .package(url: "https://github.com/AudioKit/Tablature",         from: "0.1.0"),
+        .package(url: "https://github.com/AudioKit/Fretboard",         from: "0.1.0"),
     ],
     targets: [
         .target(
             name: "CookbookCommon",
             dependencies: ["AudioKit", "AudioKitUI", "AudioKitEX", "Keyboard", "SoundpipeAudioKit",
-                           "SporthAudioKit", "STKAudioKit", "DunneAudioKit", "Tonic", "Controls", "Waveform", "Flow", "PianoRoll", "MIDIKit"],
+                           "SporthAudioKit", "STKAudioKit", "DunneAudioKit", "Tonic", "Controls",
+                           "Waveform", "Flow", "PianoRoll", "MIDIKit", "Tablature", "Fretboard"],
             resources: [
                 .copy("MIDI Files"),
                 .copy("Samples"),

Cookbook/CookbookCommon/Sources/CookbookCommon/ContentView.swift

@@ -0,0 +1,100 @@
+import Tablature
+import SwiftUI
+
+struct TablatureDemoView: View {
+    @StateObject private var midiController = MIDIController()
+    @StateObject private var liveModel = LiveTablatureModel(instrument: .guitar)
+    @State private var isPlaying = false
+
+    var body: some View {
+        ScrollView {
+            VStack(alignment: .leading, spacing: 24) {
+                // MARK: - Live Tablature (MIDI)
+                Text("Live Tablature")
+                    .font(.headline)
+                LiveTablatureView(model: liveModel)
+                    .frame(height: 140)
+                    .background(Color.secondary.opacity(0.1))
+                    .cornerRadius(8)
+
+                MIDISettingsView(
+                    midiController: midiController,
+                    instrument: $midiController.instrument,
+                    timeWindow: $liveModel.timeWindow,
+                    onReset: {
+                        isPlaying = false
+                        liveModel.reset()
+                    }
+                )
+
+                HStack {
+                    Button(isPlaying ? "Stop Simulation" : "Simulate Input") {
+                        isPlaying.toggle()
+                        if isPlaying {
+                            liveModel.reset()
+                            startSimulatedInput()
+                        }
+                    }
+                    Text("or connect a MIDI guitar")
+                        .foregroundColor(.secondary)
+                        .font(.caption)
+                }
+
+                Divider()
+
+                // MARK: - Static Examples
+                Text("Smoke on the Water")
+                    .font(.headline)
+                TablatureView(sequence: .smokeOnTheWater)
+
+                Text("C Major Scale")
+                    .font(.headline)
+                TablatureView(sequence: .cMajorScale)
+
+                Text("E Minor Chord")
+                    .font(.headline)
+                TablatureView(sequence: .eMinorChord)
+
+                Text("Blues Lick (Articulations)")
+                    .font(.headline)
+                TablatureView(sequence: .bluesLick)
+
+                Text("Custom Styled")
+                    .font(.headline)
+                TablatureView(sequence: .smokeOnTheWater)
+                    .tablatureStyle(TablatureStyle(
+                        stringSpacing: 24,
+                        measureWidth: 400,
+                        lineThickness: 2,
+                        fretColor: .blue,
+                        lineColor: .gray
+                    ))
+            }
+            .padding()
+        }
+        .onAppear {
+            midiController.noteHandler = { [weak liveModel] string, fret, articulation in
+                liveModel?.addNote(string: string, fret: fret, articulation: articulation)
+            }
+        }
+        .navigationTitle("Tablature Demo")
+    }
+
+    private func startSimulatedInput() {
+        let pattern: [(string: Int, fret: Int)] = [
+            (0, 0), (0, 3), (1, 0), (1, 2), (2, 0), (2, 2),
+            (3, 0), (3, 2), (4, 0), (4, 3), (5, 0), (5, 3),
+        ]
+        var index = 0
+
+        Timer.scheduledTimer(withTimeInterval: 0.35, repeats: true) { timer in
+            guard isPlaying else {
+                timer.invalidate()
+                return
+            }
+            let entry = pattern[index % pattern.count]
+            liveModel.addNote(string: entry.string, fret: entry.fret)
+            index += 1
+        }
+    }
+}

Cookbook/CookbookCommon/Sources/CookbookCommon/Recipes/AdditionalPackages/TablatureDemoView.swift

@@ -108,7 +108,6 @@ class MultiSegmentPlayerConductor: ObservableObject, HasAudioEngine {
             try AudioKit.Settings.session.setCategory(.playAndRecord,
                                                       options: [.defaultToSpeaker,
                                                                 .mixWithOthers,
-                                                                .allowBluetooth,
                                                                 .allowBluetoothA2DP])
             try AudioKit.Settings.session.setActive(true)
         } catch {

Cookbook/CookbookCommon/Sources/CookbookCommon/Recipes/AudioPlayer/MultiSegmentPlayerView.swift

@@ -15,7 +15,6 @@ class ChannelDeviceRoutingConductor: ObservableObject, HasAudioEngine {
             try Settings.setSession(category: .playAndRecord,
                                     with: [.defaultToSpeaker,
                                            .mixWithOthers,
-                                           .allowBluetooth,
                                            .allowBluetoothA2DP])
             try Settings.session.setActive(true)
         } catch let err {

Cookbook/CookbookCommon/Sources/CookbookCommon/Recipes/WIP/ChannelDeviceRouting.swift

@@ -0,0 +1,51 @@
+import Fretboard
+import SwiftUI
+import Tonic
+
+struct FretboardView: View {
+    @State var playedFrets: [Int?] = [nil, 5, 7, 7, 5, nil]
+    @State var bends: [Double] = [0, 0, 0, 0, 0, 0]
+    @State var bassMode = false
+    @State var selectedKey: Key = .C
+
+    var body: some View {
+        VStack(spacing: 20) {
+            Text("Fretboard Demo")
+                .font(.largeTitle)
+
+            Fretboard(
+                playedFrets: playedFrets,
+                bends: bends,
+                bassMode: bassMode,
+                noteKey: selectedKey
+            )
+            .frame(height: 150)
+            .padding(.horizontal)
+
+            Toggle("Bass Mode", isOn: $bassMode)
+                .frame(width: 200)
+
+            HStack {
+                Text("Example Chords:")
+                Button("Am") {
+                    playedFrets = [0, 1, 2, 2, 0, nil]
+                    bends = Array(repeating: 0, count: 6)
+                }
+                Button("C") {
+                    playedFrets = [0, 1, 0, 2, 3, nil]
+                    bends = Array(repeating: 0, count: 6)
+                }
+                Button("G") {
+                    playedFrets = [3, 0, 0, 0, 2, 3]
+                    bends = Array(repeating: 0, count: 6)
+                }
+                Button("Clear") {
+                    playedFrets = Array(repeating: nil, count: 6)
+                    bends = Array(repeating: 0, count: 6)
+                }
+            }
+        }
+        .padding()
+        .navigationTitle("Fretboard Demo")
+    }
+}

Cookbook/CookbookCommon/Sources/CookbookCommon/Recipes/WIP/FretboardView.swift

@@ -0,0 +1,90 @@
+import Foundation
+import MIDIKit
+import Tablature
+
+class MIDIController: ObservableObject {
+    let midiManager = MIDIManager(
+        clientName: "TablatureDemoMIDIManager",
+        model: "TablatureDemo",
+        manufacturer: "AudioKit"
+    )
+
+    enum ChannelMapPreset: String, CaseIterable, Identifiable {
+        case channels1to6 = "Ch 1–6"
+        case channels11to16 = "Ch 11–16"
+
+        var id: String { rawValue }
+
+        var mapping: [UInt4: Int] {
+            switch self {
+            case .channels1to6:
+                return [0: 5, 1: 4, 2: 3, 3: 2, 4: 1, 5: 0]
+            case .channels11to16:
+                return [10: 5, 11: 4, 12: 3, 13: 2, 14: 1, 15: 0]
+            }
+        }
+    }
+
+    @Published var channelMapPreset: ChannelMapPreset = .channels1to6 {
+        didSet { channelMap = channelMapPreset.mapping }
+    }
+
+    @Published var channelMap: [UInt4: Int]
+
+    @Published var instrument: StringInstrument = .guitar
+
+    /// Called on the main thread with (string, fret, articulation) after fret lookup.
+    var noteHandler: ((Int, Int, Articulation?) -> Void)?
+
+    /// Tracks the last note-on MIDI note per string for pitch bend context.
+    private var lastMIDINote: [Int: UInt8] = [:]
+
+    init() {
+        channelMap = ChannelMapPreset.channels1to6.mapping
+
+        do {
+            setMIDINetworkSession(policy: .anyone)
+            try midiManager.start()
+            try midiManager.addInputConnection(
+                to: .allOutputs,
+                tag: "inputConnections",
+                receiver: .events { [weak self] events, _, _ in
+                    DispatchQueue.main.async { [weak self] in
+                        self?.handleEvents(events)
+                    }
+                }
+            )
+        } catch {
+            print("MIDI did not start. Error: \(error)")
+        }
+    }
+
+    private func handleEvents(_ events: [MIDIEvent]) {
+        for event in events {
+            switch event {
+            case .noteOn(let payload):
+                guard payload.velocity.midi1Value > 0 else { continue }
+                guard let stringIndex = channelMap[payload.channel] else { continue }
+                let midiNote = payload.note.number.uInt8Value
+                lastMIDINote[stringIndex] = midiNote
+                if let fret = instrument.fret(for: midiNote, onString: stringIndex) {
+                    noteHandler?(stringIndex, fret, nil)
+                }
+
+            case .pitchBend(let payload):
+                guard let stringIndex = channelMap[payload.channel] else { continue }
+                let centered = Int(payload.value.midi1Value) - 8192
+                let semitones = Double(centered) / 8192.0 * 2.0
+                if abs(semitones) > 1.0 {
+                    guard let lastNote = lastMIDINote[stringIndex],
+                          let fret = instrument.fret(for: lastNote, onString: stringIndex)
+                    else { continue }
+                    noteHandler?(stringIndex, fret, .pitchBendArrow)
+                }
+
+            default:
+                break
+            }
+        }
+    }
+}

Cookbook/CookbookCommon/Sources/CookbookCommon/Reusable Components/MIDIController.swift

@@ -0,0 +1,46 @@
+import SwiftUI
+import Tablature
+
+struct MIDISettingsView: View {
+    @ObservedObject var midiController: MIDIController
+    @Binding var instrument: StringInstrument
+    @Binding var timeWindow: Double
+    var onReset: () -> Void
+
+    private static let instruments: [StringInstrument] = [
+        .guitar, .guitar7String, .guitarDropD,
+        .bass, .bass5String, .ukulele, .banjo,
+    ]
+
+    var body: some View {
+        HStack(spacing: 16) {
+            Picker("Instrument", selection: $instrument) {
+                ForEach(Self.instruments) { preset in
+                    Text(preset.name).tag(preset)
+                }
+            }
+            .frame(maxWidth: 200)
+
+            Picker("Channels", selection: $midiController.channelMapPreset) {
+                ForEach(MIDIController.ChannelMapPreset.allCases) { preset in
+                    Text(preset.rawValue).tag(preset)
+                }
+            }
+            .pickerStyle(.segmented)
+            .frame(maxWidth: 200)
+
+            HStack(spacing: 4) {
+                Text("Window:")
+                Slider(value: $timeWindow, in: 2...15, step: 1)
+                    .frame(maxWidth: 120)
+                    .accessibilityLabel("Time window")
+                    .accessibilityValue("\(Int(timeWindow)) seconds")
+                Text("\(Int(timeWindow))s")
+                    .monospacedDigit()
+                    .frame(width: 28, alignment: .trailing)
+            }
+
+            Button("Reset", action: onReset)
+        }
+    }
+}