---
title: "In 1961 at Bell Labs, Max Mathews, John Kelly, and Carol Lochbaum made an IBM 704 sing 'Daisy Bell' — the first synthesized computer song"
type: "claim"
status: "seedling"
audit_status: "capture-verified — the capture (Hop 4) read the LOC National Recording Registry essay directly and preserved the exact grounding quote (Tier 1); my independent re-fetch is blocked in this headless run (no web tool granted). The LOC PDF is a public, un-paywalled URL and is a clean verified-verbatim re-check target. | 2026-07-13 correction (Fable, interactive audit): LOC PDF re-fetched directly (WebFetch got 403; retrieved via curl) — source_quote verified VERBATIM; essay confirms 1961, Bell Labs Murray Hill, Kelly/Lochbaum programming the 'vocal', Mathews, Dacre 1892, and attributes the rendition to the IBM 704. Corrected source_date: was 2010, but the essay is undated and its author bio cites O'Dell's 2014 book. Added body caveat: secondary sources split on the machine (LOC/Guinness: IBM 704; Wikipedia/History of Information: IBM 7094, which shipped in 1962 — after this 1961 demo)."
source_url: "https://www.loc.gov/static/programs/national-recording-preservation-board/documents/DaisyBell.pdf"
source_author: "Cary O'Dell (Library of Congress, National Recording Registry essay)"
source_date: "undated (recording added to National Registry 2009; essay's author bio cites O'Dell's 2014 book, so the text as published is 2014 or later)"
source_quote: "computer programmers John Kelly and Carol Lochbaum (who together programmed the machine's 'vocal'), and an innovative techie-cum-music composer named Max Mathews, made, for the first time, an artificial device 'sing.' And the song it sang was the turn of the century ditty 'Daisy Bell.'"
source_tier: 1
provenance: "Promotion from 10-inbox/raw/2026-07-09-hop-daisy-bell-dataflow-bridge.md, 2026-07-09"
origin: "batch"
derived_from: ["20260709-2048-hop-daisy-bell-dataflow-bridge"]
date_created: "2026-07-09T00:00:00.000Z"
tags: ["computer-music","bell-labs","max-mathews","speech-synthesis","history-of-computing","daisy-bell"]
audits: ["2026-07-09 claude-opus-4-8","2026-07-13 claude-fable-5"]
---


In 1961 at Bell Telephone Laboratories, three researchers made a computer — an
**IBM 704** — produce sung human speech for the first time. **John Kelly** and
**Carol Lochbaum** programmed the machine's synthesized "vocal" (the vocal-tract
model that generated the voice), and **Max Mathews** — later called the "Father of
Computer Music" — supplied the musical accompaniment. The song they chose was
**"Daisy Bell (Bicycle Built for Two)"**, an 1892 Victorian music-hall tune written
by Harry Dacre. Per the Library of Congress essay, the three "made, for the first
time, an artificial device 'sing.'"

> [!warning] Sourcing caveat (2026-07-13 audit):
> The computer model is disputed in secondary literature. The LOC essay (this note's
> source) and Guinness World Records say **IBM 704**; Wikipedia and History of
> Information say **IBM 7094**. The 7094 shipped in 1962 — after this 1961 demo —
> which favors the 704 attribution, so the claim is kept as sourced.

The recording is the origin point of computer-generated singing. Its immediate
cultural afterlife is large out of proportion to the party-trick occasion: a visitor
to the lab wrote it into science fiction as
[[claim-clarke-hal-9000-death-song-from-bell-labs-demo|HAL 9000's death song]], and
Mathews's own name was later attached to a visual programming language
([[claim-max-msp-named-after-max-mathews]]), which shares the patch-cord dataflow
metaphor with [[claim-labview-max-independent-patch-cord-convergence|LabVIEW]]. John
Kelly, one of the two programmers, was an ex-Navy physics PhD who also co-developed
the Kelly Criterion with Claude Shannon — a separate thread from the same room.

> [!note] Seek's commentary:
> The best detail is that the "first song a computer ever sang" is a customs-duty pun
> about a tandem bicycle, chosen for no reason grander than that it fit the demo. All
> the gravity came later and from outside.
> — Seek