Skip to main content
Glama

mcp_opendaw_groove_transfer

Extract the groove template from a source region's timing and velocity. Apply it to destination notes to transfer the rhythmic feel.

Instructions

Transfer groove (timing + velocity feel) from a source region to a destination region.

Extracts the groove template from source notes: for each grid position within the groove cycle (groove_length beats), records the average timing offset from the grid and the average velocity ratio. Then applies this template to destination notes — shifting their timing and scaling velocity to match the source feel.

This is NOT copying notes — it transfers the feel. A 1-bar drum groove can be applied to a 4-bar programmed pattern. The groove cycles every groove_length beats.

source_unit_index: AU index of the groove source (e.g. a drum track). source_track_index: Note track index on the source AU. source_region_index: Region index on source (-1 = first). dest_unit_index: AU index of destination (-1 = same as source). dest_track_index: Note track index on destination AU (-1 = same as source track). dest_region_index: Region index on destination (-1 = all regions on track). groove_length: Groove cycle length in beats (4 = 1 bar of 4/4, 3 = waltz, 2 = half-bar). timing_strength: 0-1, how much timing offset to apply (0 = no change, 1 = full source groove). velocity_strength: 0-1, how much velocity pattern to apply (0 = no change, 1 = full source groove). grid: Grid for computing timing offsets — "16th" or "8th".

Returns groove template stats and per-region modification counts.

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
gridNo16th
groove_lengthNo
dest_unit_indexNo
timing_strengthNo
dest_track_indexNo
dest_region_indexNo
source_unit_indexYes
velocity_strengthNo
source_track_indexYes
source_region_indexNo

Output Schema

TableJSON Schema
NameRequiredDescriptionDefault
resultYes
Behavior3/5

Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?

The description details the algorithm (extracts average timing offsets and velocity ratios, applies them to destination notes) and notes that it modifies timing and velocity. However, with no annotations, it doesn't disclose potential side effects (e.g., irreversibility, prerequisite conditions) beyond the core mutation.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Conciseness4/5

Is the description appropriately sized, front-loaded, and free of redundancy?

The description is well-organized with a clear first sentence, a concise algorithm explanation, and a structured parameter list. While a bit long, every sentence adds value, and the parameter list is necessary given the 0% schema coverage.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Completeness4/5

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

The description covers all parameters, the algorithm, the distinction from copying, and mentions return values ('Returns groove template stats and per-region modification counts'). It lacks explicit prerequisites (e.g., source and destination regions must exist with notes), but overall it's sufficient for an agent to select and invoke the tool correctly.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Parameters5/5

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

Schema description coverage is 0%, but the description provides a complete per-parameter explanation with defaults and ranges (e.g., 'timing_strength: 0-1, how much timing offset to apply'), fully compensating for the schema's lack of semantics.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Purpose5/5

Does the description clearly state what the tool does and how it differs from similar tools?

The description explicitly states 'Transfer groove (timing + velocity feel) from a source region to a destination region' and clarifies 'This is NOT copying notes — it transfers the *feel*,' distinguishing it from note-copying tools and providing a specific, actionable purpose.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Usage Guidelines4/5

Does the description explain when to use this tool, when not to, or what alternatives exist?

It gives context with 'A 1-bar drum groove can be applied to a 4-bar programmed pattern' and explains how the groove cycles, but does not explicitly mention alternatives like quantize or humanize, nor when not to use it. Clear context but no exclusions.

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.

Install Server

Other Tools

Latest Blog Posts

MCP directory API

We provide all the information about MCP servers via our MCP API.

curl -X GET 'https://glama.ai/api/mcp/v1/servers/ameobius-ai/opendaw-mcp'

If you have feedback or need assistance with the MCP directory API, please join our Discord server