Get Several Tracks' Audio Features

Deprecated

AudioFeatureBulkRetrieveResponse AudioFeatures.BulkRetrieve(, )

GET/audio-features

Get audio features for multiple tracks based on their Spotify IDs.

ParametersExpand Collapse

AudioFeatureBulkRetrieveParams parameters

required string ids

A comma-separated list of the Spotify IDs for the tracks. Maximum: 100 IDs.

ReturnsExpand Collapse

class AudioFeatureBulkRetrieveResponse:

required IReadOnlyList<AudioFeature> AudioFeatures

string ID

The Spotify ID for the track.

Float Acousticness

A confidence measure from 0.0 to 1.0 of whether the track is acoustic. 1.0 represents high confidence the track is acoustic.

formatfloat

minimum0

maximum1

string AnalysisUrl

A URL to access the full audio analysis of this track. An access token is required to access this data.

Float Danceability

Danceability describes how suitable a track is for dancing based on a combination of musical elements including tempo, rhythm stability, beat strength, and overall regularity. A value of 0.0 is least danceable and 1.0 is most danceable.

formatfloat

Long DurationMs

The duration of the track in milliseconds.

Float Energy

Energy is a measure from 0.0 to 1.0 and represents a perceptual measure of intensity and activity. Typically, energetic tracks feel fast, loud, and noisy. For example, death metal has high energy, while a Bach prelude scores low on the scale. Perceptual features contributing to this attribute include dynamic range, perceived loudness, timbre, onset rate, and general entropy.

formatfloat

Float Instrumentalness

Predicts whether a track contains no vocals. "Ooh" and "aah" sounds are treated as instrumental in this context. Rap or spoken word tracks are clearly "vocal". The closer the instrumentalness value is to 1.0, the greater likelihood the track contains no vocal content. Values above 0.5 are intended to represent instrumental tracks, but confidence is higher as the value approaches 1.0.

formatfloat

Long Key

The key the track is in. Integers map to pitches using standard Pitch Class notation. E.g. 0 = C, 1 = C♯/D♭, 2 = D, and so on. If no key was detected, the value is -1.

minimum-1

maximum11

Float Liveness

Detects the presence of an audience in the recording. Higher liveness values represent an increased probability that the track was performed live. A value above 0.8 provides strong likelihood that the track is live.

formatfloat

Float Loudness

The overall loudness of a track in decibels (dB). Loudness values are averaged across the entire track and are useful for comparing relative loudness of tracks. Loudness is the quality of a sound that is the primary psychological correlate of physical strength (amplitude). Values typically range between -60 and 0 db.

formatfloat

Long Mode

Mode indicates the modality (major or minor) of a track, the type of scale from which its melodic content is derived. Major is represented by 1 and minor is 0.

Boolean Published

The playlist's public/private status (if it should be added to the user's profile or not): true the playlist will be public, false the playlist will be private, null the playlist status is not relevant. For more about public/private status, see Working with Playlists

Float Speechiness

Speechiness detects the presence of spoken words in a track. The more exclusively speech-like the recording (e.g. talk show, audio book, poetry), the closer to 1.0 the attribute value. Values above 0.66 describe tracks that are probably made entirely of spoken words. Values between 0.33 and 0.66 describe tracks that may contain both music and speech, either in sections or layered, including such cases as rap music. Values below 0.33 most likely represent music and other non-speech-like tracks.

formatfloat

Float Tempo

The overall estimated tempo of a track in beats per minute (BPM). In musical terminology, tempo is the speed or pace of a given piece and derives directly from the average beat duration.

formatfloat

Long TimeSignature

An estimated time signature. The time signature (meter) is a notational convention to specify how many beats are in each bar (or measure). The time signature ranges from 3 to 7 indicating time signatures of "3/4", to "7/4".

minimum3

maximum7

string TrackHref

A link to the Web API endpoint providing full details of the track.

Type Type

The object type.

string Uri

The Spotify URI for the track.

Float Valence

A measure from 0.0 to 1.0 describing the musical positiveness conveyed by a track. Tracks with high valence sound more positive (e.g. happy, cheerful, euphoric), while tracks with low valence sound more negative (e.g. sad, depressed, angry).

minimum0

maximum1

formatfloat

Get Several Tracks' Audio Features

AudioFeatureBulkRetrieveParams parameters = new()
{
    Ids = "7ouMYWpwJ422jRcDASZB7P,4VqPOruhp5EdPBeR92t6lQ,2takcwOaAZWiXQijPHIx7B"
};

var response = await client.AudioFeatures.BulkRetrieve(parameters);

Console.WriteLine(response);

{
  "audio_features": [
    {
      "id": "2takcwOaAZWiXQijPHIx7B",
      "acousticness": 0.00242,
      "analysis_url": "https://api.spotify.com/v1/audio-analysis/2takcwOaAZWiXQijPHIx7B\n",
      "danceability": 0.585,
      "duration_ms": 237040,
      "energy": 0.842,
      "instrumentalness": 0.00686,
      "key": 9,
      "liveness": 0.0866,
      "loudness": -5.883,
      "mode": 0,
      "published": true,
      "speechiness": 0.0556,
      "tempo": 118.211,
      "time_signature": 4,
      "track_href": "https://api.spotify.com/v1/tracks/2takcwOaAZWiXQijPHIx7B\n",
      "type": "audio_features",
      "uri": "spotify:track:2takcwOaAZWiXQijPHIx7B",
      "valence": 0.428
    }
  ]
}

Returns Examples

{
  "audio_features": [
    {
      "id": "2takcwOaAZWiXQijPHIx7B",
      "acousticness": 0.00242,
      "analysis_url": "https://api.spotify.com/v1/audio-analysis/2takcwOaAZWiXQijPHIx7B\n",
      "danceability": 0.585,
      "duration_ms": 237040,
      "energy": 0.842,
      "instrumentalness": 0.00686,
      "key": 9,
      "liveness": 0.0866,
      "loudness": -5.883,
      "mode": 0,
      "published": true,
      "speechiness": 0.0556,
      "tempo": 118.211,
      "time_signature": 4,
      "track_href": "https://api.spotify.com/v1/tracks/2takcwOaAZWiXQijPHIx7B\n",
      "type": "audio_features",
      "uri": "spotify:track:2takcwOaAZWiXQijPHIx7B",
      "valence": 0.428
    }
  ]
}