Chime

--Configuration
local speakerSide = "top"
local playSpeed = 0.2
local playVolume = 20

--Argument Definition
local filePath, playNotes = ...

--Note Dictionary
local note = {
    ["a"] = 220,
    ["b"] = 248.942,
    ["c"] = 261.626,
    ["d"] = 293.665,
    ["e"] = 329.628,
    ["f"] = 349.228,
    ["g"] = 391.995
}

--Usage Label
local function usage()
    print("This program is designed to play music in notation 'aabbcc'.")
    print("Usage: chime [File Path] [true to show notes, or false to not]")
end

--File Loader and Parser
local function fileParse()
    return fs.open(filePath,"r").readLine()
end

--Player
local function play()
    peripheral.wrap(speakerSide).setAttenuation(playVolume)
    if playNotes == "false" then
            if c ~= " " then
                peripheral.wrap(speakerSide).start(1,note[c])
                sleep(playSpeed)
                peripheral.wrap(speakerSide).stop(1)
            else
                sleep(playSpeed)
            end
    elseif playNotes == "true" then
        for c in fileParse():gmatch"." do
            if c ~= " " then
                peripheral.wrap(speakerSide).start(1,note[c])
                sleep(playSpeed)
                peripheral.wrap(speakerSide).stop(1)
                print(c)
            else
                sleep(playSpeed)
            end
        end
    else
        usage()
    end
end

--Main
local function main()
    term.clear()
    term.setCursorPos(1,1)
    play()
    print("Song Finished")
end

main()