/// <summary>
/// Gets notes from a file in the following format:
/// Cm,1 (1=number of beats)
/// E,3
/// F#m,4
/// </summary>
/// <param name="filepath">the path to the file.</param>
/// <returns>true if success, false if fail.</returns>
public bool GetFromCSV(string filepath)
{
StreamReader file = new StreamReader(filepath);
string line = "";
song.Clear(); //make way for new notes
while ((line = file.ReadLine()) != null) //while getting a new line doens't fail
{
string note, mode;
string[] parms= line.Split(',');
string key = parms[0];
string len = parms[1];
if (key.Length > 1)
{
if (key[1] == '#') { note = key.Substring(0, 2); key = key.Substring(2); }
else { note = key.Substring(0, 1); key = key.Substring(1); }
}
else { note = key[0].ToString(); key = key.Substring(1); }
if (key.Length > 0) { mode = key; }
else { mode = "M"; }
Keys k = new Keys(note, mode);
byte l =byte.Parse(len);
song.Add(new Tuple<Keys,byte>(k,l));
}
return true;
}
private void play_chord(Keys k, int t)
{
int n1 = (int)Mozart.Component(k, 1) + 57;
int n2 = (int)Mozart.Component(k, 3) + 57;
int n3 = (int)Mozart.Component(k, 5) + 57;
while (n1 < low) { n1 += 12; }
while (n2 < n1) { n2 += 12; }
while (n3 < n2) { n3 += 12; }
ChannelMessageBuilder builder = new ChannelMessageBuilder();
builder.Command = ChannelCommand.NoteOn;
builder.MidiChannel = 0;
builder.Data1 = n1;
builder.Data2 = 127;
builder.Build();
outDevice.Send(builder.Result);
builder.Command = ChannelCommand.NoteOn;
builder.MidiChannel = 0;
builder.Data1 = n2;
builder.Data2 = 127;
builder.Build();
outDevice.Send(builder.Result);
builder.Command = ChannelCommand.NoteOn;
builder.MidiChannel = 0;
builder.Data1 = n3;
builder.Data2 = 127;
builder.Build();
outDevice.Send(builder.Result);
System.Threading.Thread.Sleep(t);
builder.Command = ChannelCommand.NoteOff;
builder.MidiChannel = 0;
builder.Data1 = n1;
builder.Data2 = 127;
builder.Build();
outDevice.Send(builder.Result);
builder.Command = ChannelCommand.NoteOff;
builder.MidiChannel = 0;
builder.Data1 = n2;
builder.Data2 = 127;
builder.Build();
outDevice.Send(builder.Result);
builder.Command = ChannelCommand.NoteOff;
builder.MidiChannel = 0;
builder.Data1 = n3;
builder.Data2 = 127;
builder.Build();
outDevice.Send(builder.Result);
}
/// <summary>
/// gives a specific note of a scale
/// </summary>
/// <param name="key">The key to select the component from</param>
/// <param name="interval">the interval to select. 1=root, 5=fifth, etc</param>
/// <returns>the note offset from middle A (57)</returns>
public static byte Component(Keys key, int interval)
{
interval = ((interval - 1) % 7) + 1;//translate octaves back onto the domain of this function
byte note = (byte)key.note;
switch (interval)
{
case 2: note += 2; break;
case 3:
switch (key.mode)
{
case Mode.Major: note += 4; break;
case Mode.Minor:
case Mode.Diminished: note += 3; break;
} break;
case 4: note += 5; break;
case 5:
switch (key.mode)
{
case Mode.Diminished: note += 6; break;
case Mode.Minor:
case Mode.Major: note += 7; break;
} break;
case 6:
switch (key.mode)
{
case Mode.Minor:
case Mode.Diminished: note += 8; break;
case Mode.Major: note += 9; break;
} break;
case 7: note += 11; break;
case 8: note = (byte)(Component(key, interval) + 12); break;
}
note %= 12;
return note;
}