ditty.bpm = 50;
// =============== 1. KICK (subgrave) ===============
const kick = synth.def(class {
constructor() {
this.phase = 0;
}
process(note, env, tick, options) {
const t = ditty.dt * this.phase++;
// Frecuencia que decae rápidamente
const freq = 60 + 200 * Math.exp(-t * 15);
const wave = Math.sin(2 * Math.PI * freq * t);
return wave * env.value * 0.9;
}
});
// =============== 2. HI-HATS ===============
// Hi-hat cerrado (rápido)
const hihatClosed = synth.def((phase, env, tick, options) => {
// Ruido blanco suavizado
const noise = Math.random() * 2 - 1;
// Filtro de paso alto simulado
const filtered = noise * 0.7 + (noise > 0 ? 1 : -1) * 0.3;
return filtered * env.value * 0.3;
});
// Hi-hat abierto (más largo)
const hihatOpen = synth.def((phase, env, tick, options) => {
const noise = Math.random() * 2 - 1;
return noise * env.value * 0.25;
});
// =============== 3. BAJO (onda cuadrada) ===============
const bass = synth.def((phase, env, tick, options) => {
const wave = Math.sin(phase) >= 0 ? 1 : -1;
return wave * env.value * 0.7;
});
// =============== 4. MELODÍA PRINCIPAL (saw + pulse) ===============
const lead = synth.def(class {
constructor() {
this.time = 0;
}
process(note, env, tick, options) {
this.time += ditty.dt;
const t = this.time;
const freq = 440 * Math.pow(2, (note - 69) / 12);
// Onda de sierra
const saw = (t * freq) % 1 * 2 - 1;
// Pulso ancho (25% duty cycle)
const pulse = ((t * freq) % 1 < 0.25) ? 1 : -1;
const mix = (saw * 0.6 + pulse * 0.4) * env.value;
return mix * 0.5; // volumen ajustado
}
});
// =============== 5. NOTAS DEL BAJO ===============
const bassNotes = [
[0.00000,22.0,0.18750], [0.00000,29.0,0.18750],
[0.25000,22.0,0.43750], [0.25000,29.0,0.43750],
[0.50000,22.0,0.62500], [0.50000,29.0,0.62500],
[0.68750,19.0,0.81250], [0.68750,26.0,0.81250],
[0.87500,19.0,1.06250], [0.87500,26.0,1.06250],
[1.06250,15.0,1.18750], [1.06250,22.0,1.18750],
[1.18750,17.0,1.31250], [1.18750,24.0,1.31250],
[1.37500,17.0,1.50000], [1.37500,24.0,1.50000],
[1.56250,17.0,1.62500], [1.56250,24.0,1.62500],
[1.68750,17.0,1.87500], [1.68750,24.0,1.87500],
[1.87500,19.0,2.00000], [1.87500,26.0,2.00000],
[2.00000,22.0,2.12500], [2.00000,29.0,2.12500],
[2.12500,24.0,2.25000], [2.12500,31.0,2.25000],
[2.25000,22.0,2.43750], [2.25000,29.0,2.43750],
[2.50000,22.0,2.62500], [2.50000,29.0,2.62500],
[2.68750,22.0,2.81250], [2.68750,29.0,2.81250],
[2.81250,19.0,2.93750], [2.81250,26.0,2.93750],
[3.00000,19.0,3.18750], [3.00000,26.0,3.18750],
[3.18750,15.0,3.31250], [3.18750,22.0,3.31250],
[3.31250,17.0,3.43750], [3.31250,24.0,3.43750],
[3.50000,17.0,3.62500], [3.50000,24.0,3.62500],
[3.68750,17.0,3.75000], [3.68750,24.0,3.75000],
[3.81250,17.0,4.00000], [3.81250,24.0,4.00000],
[3.96875,19.0,4.09375], [3.96875,26.0,4.09375],
[4.09375,22.0,4.21875], [4.09375,29.0,4.21875],
[4.21875,19.0,4.34375], [4.21875,26.0,4.34375],
[4.34375,22.0,4.46875], [4.34375,29.0,4.46875],
[4.53125,22.0,4.65625], [4.53125,29.0,4.65625],
[4.71875,22.0,4.84375], [4.71875,29.0,4.84375],
[4.84375,19.0,4.96875], [4.84375,26.0,4.96875],
[5.03125,19.0,5.21875], [5.03125,26.0,5.21875],
[5.21875,15.0,5.34375], [5.21875,22.0,5.34375],
[5.34375,17.0,5.46875], [5.34375,24.0,5.46875],
[5.53125,17.0,5.65625], [5.53125,24.0,5.65625],
[5.71875,17.0,5.78125], [5.71875,24.0,5.78125],
[5.84375,17.0,6.03125], [5.84375,24.0,6.03125],
[6.00000,19.0,6.12500], [6.00000,26.0,6.12500],
[6.12500,22.0,6.25000], [6.12500,29.0,6.25000],
[6.25000,24.0,6.37500], [6.25000,31.0,6.37500],
[6.37500,22.0,6.50000], [6.37500,29.0,6.50000],
[6.56250,22.0,6.68750], [6.56250,29.0,6.68750],
[6.75000,22.0,6.87500], [6.75000,29.0,6.87500],
[6.87500,19.0,7.00000], [6.87500,26.0,7.00000],
[7.06250,19.0,7.25000], [7.06250,26.0,7.25000],
[7.25000,15.0,7.37500], [7.25000,22.0,7.37500],
[7.31250,46.0,7.37500],
[7.37500,17.0,7.50000], [7.37500,24.0,7.50000],
[7.56250,17.0,7.68750], [7.56250,24.0,7.68750],
[7.68750,46.0,7.75000],
[7.75000,17.0,7.81250], [7.75000,24.0,7.81250], [7.75000,46.0,7.81250],
[7.87500,17.0,8.06250], [7.87500,24.0,8.06250], [7.87500,46.0,8.06250]
];
// =============== 6. MELODÍA PRINCIPAL (acordes agudos) ===============
const leadNotes = [
[7.31250,46.0,7.37500],
[7.68750,46.0,7.75000],
[7.75000,46.0,7.81250],
[7.87500,46.0,8.06250],
[8.15625,46.0,8.21875],
[8.40625,41.0,8.90625],
[8.40625,46.0,9.40625],
[8.78125,46.0,8.84375],
[8.90625,49.0,9.09375],
[9.09375,48.0,9.21875]
];
// =============== 7. PATRÓN DE BATERÍA (kick + hats) ===============
// Kick: en tiempos fuertes (0, 2, 4, 6...)
// Hi-hats: cada 1/8 (0.25, 0.5, 0.75, 1.0...)
function playDrums() {
// Kick en beats 0, 2, 4, 6
for (let i = 0; i < 8; i += 2) {
kick.play(0, { duration: 0.25, attack: 0.001, release: 0.2, amp: 1.0 });
sleep(2);
}
}
// Programar batería y melodía
loop(() => {
// === BATERÍA (kick + hi-hats) ===
const drumEvents = [];
// Kick en 0, 2, 4, 6
[0, 2, 4, 6].forEach(t => {
drumEvents.push({ time: t, type: 'kick' });
});
// Hi-hats cerrados cada 0.25 beats (ritmo house)
for (let t = 0; t < 8; t += 0.25) {
if (![0, 2, 4, 6].includes(t)) {
drumEvents.push({ time: t, type: 'closed' });
}
}
// Hi-hats abiertos en offbeats (opcional, para acentos)
[1.5, 3.5, 5.5, 7.5].forEach(t => {
drumEvents.push({ time: t, type: 'open' });
});
// Ordenar eventos de batería
drumEvents.sort((a, b) => a.time - b.time);
// === COMBINAR TODOS LOS EVENTOS ===
const allEvents = {};
// Añadir bajo
bassNotes.forEach(([s, m, e]) => {
if (!allEvents[s]) allEvents[s] = [];
allEvents[s].push(() => bass.play(m+48, { duration: e - s, attack: 0.01, release: 0.08, amp: 0.8 }));
});
// Añadir melodía
leadNotes.forEach(([s, m, e]) => {
if (!allEvents[s]) allEvents[s] = [];
allEvents[s].push(() => lead.play(m, { duration: e - s, attack: 0.01, release: 0.15, amp: 0.6 }));
});
// Añadir batería
drumEvents.forEach(ev => {
if (!allEvents[ev.time]) allEvents[ev.time] = [];
allEvents[ev.time].push(() => {
if (ev.type === 'kick') kick.play(0, { duration: 0.25, attack: 0.001, release: 0.2, amp: 1.0 });
else if (ev.type === 'closed') hihatClosed.play(0, { duration: 0.125, attack: 0.001, release: 0.1, amp: 0.5 });
else if (ev.type === 'open') hihatOpen.play(0, { duration: 0.5, attack: 0.001, release: 0.4, amp: 0.4 });
});
});
// === REPRODUCIR TODO EN ORDEN ===
const times = Object.keys(allEvents).map(Number).sort((a, b) => a - b);
let currentTime = 0;
for (const t of times) {
if (t > currentTime) {
sleep(t - currentTime);
currentTime = t;
}
allEvents[t].forEach(fn => fn());
}
// Completar compás
if (currentTime < 8) sleep(8 - currentTime);
}, { name: "Technotronic - Move This (Full Beat)" });
