TempoTrue for ChatGPT and Claude
What it does
Use TempoTrue inside ChatGPT or Claude. Ask for a metronome at any tempo and time signature, check what a tempo marking means, or get a speed practice plan.
Connect
Connection URL: https://tempotrue.com/api/mcp
No sign-in or API key is needed.
Tools
start_metronome Start a metronome
Prepares a playable metronome at a tempo from 20 to 400 BPM with an optional time signature, beat grouping, accents, subdivision and sound. Returns the tempo, its Italian marking, the meter with accents and a link that opens the full metronome with these settings.
Read-only
Inputs
bpm | number | Tempo in beats per minute, for example 96 or 120.5. |
signature | string? | Time signature, for example "4/4", "6/8" or "11/8". |
grouping | string? | Beat grouping for odd meters, for example "3+3+3+2". |
accents | array? | Accent level per beat: "f" strong, "mf" medium, "p" soft, "mute" silent. For example ["f","p","mf","p"]. |
subdivision | quarter | eighth | triplet | sixteenth | shuffle | dotted | quintuplet | sextuplet? | Clicks inside each beat: quarter, eighth, triplet, sixteenth, shuffle, dotted, quintuplet or sextuplet. |
sound | click | wood | beep | cowbell | voice | kick | snare | hihat | rim? | Click sound: click, wood, beep, cowbell, voice, kick, snare, hihat or rim. |
locale | string? | Language for the reply (BCP 47). |
Returns
text: string
tempo_info Tempo and marking info
Explains a tempo in BPM or an Italian tempo marking such as Allegro, Andantino or "Allegro ma non troppo". Takes a BPM value, a marking or both, and optionally a time signature. Returns the marking and its BPM range, the beat length, note lengths in milliseconds for delay effects, the bar length and whether the BPM fits the marking.
Read-only
Inputs
bpm | number? | Tempo in BPM, for example 120. |
marking | string? | Italian tempo marking, for example "Andante" or "Allegro moderato". |
signature | string? | Time signature, for example "4/4", "6/8" or "11/8". |
locale | string? | Language for the reply (BCP 47). |
Returns
text: string
speed_trainer_plan Speed trainer plan
Builds a practice plan that raises the tempo step by step from a start to a target tempo. Takes the start and target BPM, the step in BPM, the number of bars per step and an optional time signature. Returns the stages with tempos, the total bars and minutes, and a link that opens the speed trainer with this plan.
Read-only
Inputs
from | number | Start tempo in BPM, for example 80. |
to | number | Target tempo in BPM, for example 120. |
step | number | BPM added at each stage, for example 5. |
everyBars | integer | Bars played at each tempo, for example 4. |
signature | string? | Time signature, for example "4/4", "6/8" or "11/8". |
locale | string? | Language for the reply (BCP 47). |
Returns
text: string
Try asking
- Start a metronome at 96 BPM in 7/8, grouped 2+2+3
- What BPM is Andante?
- Plan speed practice from 80 to 120 BPM
- How many milliseconds is one beat at 150 BPM?
Interactive view
The answer comes with a small card that plays the click right in the chat: change the tempo with the buttons, follow the beats and run a speed trainer plan stage by stage. The full metronome opens with the same settings.
Your data
The app does not store your questions. The tempo and signature you send are used only to build the answer and the link.
- Your metronome settings, presets, setlists, practice diary and theme — Only in your browser (localStorage)
- Anonymous usage events (page views, play, which tool and mode was used) — Sent to PostHog