gem 'tone.rb'

# play after 0.1 seconds
Tone::Transport.start("+0.1")

# stop now
Tone::Transport.stop

# Volume is measured in decibels
synth = Tone::Synth::FM.new(volume: 2)

# Play the E2 note at 0 and release at 0.5 seconds
synth.trigger_attack_release('E2', 0.5, 0)

# Each synths are compared by the volume attribute
synth == Tone::Synth::FM.new(volume: 2) #=> true
synth == Tone::Synth::FM.new(volume: 3) #=> false
synth == Tone::Synth::AM.new(volume: 2) #=> false

# Connect all effects between each other and connect the synth as the input
synth.chain(array_of_effects)

# each effect has specific attributes
vibrato = Tone::Effect::Vibrato.new(frequency: 5, depth: 0.1)
vibrato == Tone::Effect::Vibrato.new(frequency: 5, depth: 0.2) #=> false

# schedules notes in order every 2 seconds
Tone::Event::Sequence.new([['E2', 'C1'], 'D2'], 'C2'], 2) do |time, note|
  Tone::Synth::FM.new.trigger_attack_release note, '1', time
end

# schedules notes in a random order
pattern = Tone::Event::Pattern.new(['E2', 'C1', 'D2', 'C2'], :random) do |time, note|
  Tone::Synth::FM.new.trigger_attack_release note, '1', time
end

# every 2 seconds
pattern.interval = 2

# run it in loop mode
pattern.start(0)
pattern.loop = true