Example of detailed Echo Nest analysis

analysis.json

{
    "bars": [
        {
            "confidence": 0.451, 
            "duration": 1.64692, 
            "start": 0.7151
        }, 
        {
            "confidence": 0.32, 
            "duration": 1.64778, 
            "start": 2.36202
        }, 
        {
            "confidence": 0.238, 
            "duration": 1.64901, 
            "start": 4.0098
        }, 
        {
            "confidence": 0.369, 
            "duration": 1.65217, 
            "start": 5.65881
        }, 
        // ...
    ], 
    "beats": [
        {
            "confidence": 0.754, 
            "duration": 0.41159, 
            "start": 0.30351
        }, 
        {
            "confidence": 0.0, 
            "duration": 0.41289, 
            "start": 0.7151
        }, 
        {
            "confidence": 0.546, 
            "duration": 0.41316, 
            "start": 1.12799
        }, 
        {
            "confidence": 0.693, 
            "duration": 0.41214, 
            "start": 1.54115
        }, 
        // ...
    ], 
    "meta": {
        "album": "", 
        "analysis_time": 6.92866, 
        "analyzer_version": "3.08d", 
        "artist": "", 
        "bitrate": 96, 
        "detailed_status": "OK", 
        "filename": "/var/tmp/3L7BcXHCG8uT92viO6Tikl.ogg", 
        "genre": "", 
        "sample_rate": 44100, 
        "seconds": 261, 
        "status_code": 0, 
        "timestamp": 1320711446, 
        "title": ""
    }, 
    "sections": [
        {
            "confidence": 1.0, 
            "duration": 27.07759, 
            "start": 0.0
        }, 
        {
            "confidence": 0.64, 
            "duration": 52.87997, 
            "start": 27.07759
        }, 
        {
            "confidence": 0.933, 
            "duration": 15.32775, 
            "start": 79.95756
        }, 
        {
            "confidence": 0.824, 
            "duration": 35.18458, 
            "start": 95.28531
        }, 
        // ...
    ], 
    "segments": [
        {
            "confidence": 0.0, 
            "duration": 0.25732, 
            "loudness_max": -60.0, 
            "loudness_max_time": 0.0, 
            "loudness_start": -60.0, 
            "pitches": [
                0.737, 
                1.0, 
                0.737, 
                0.566, 
                0.459, 
                0.359, 
                0.315, 
                0.383, 
                0.376, 
                0.322, 
                0.27, 
                0.48
            ], 
            "start": 0.0, 
            "timbre": [
                0.0, 
                171.13, 
                9.469, 
                -28.48, 
                57.491, 
                -50.067, 
                14.833, 
                5.359, 
                -27.228, 
                0.973, 
                -10.64, 
                -7.228
            ]
        }, 
        {
            "confidence": 1.0, 
            "duration": 0.83891, 
            "loudness_max": -19.359, 
            "loudness_max_time": 0.03796, 
            "loudness_start": -60.0, 
            "pitches": [
                0.033, 
                0.026, 
                0.01, 
                0.013, 
                0.099, 
                0.016, 
                0.035, 
                0.05, 
                0.033, 
                1.0, 
                0.042, 
                0.016
            ], 
            "start": 0.25732, 
            "timbre": [
                33.865, 
                -32.932, 
                -70.845, 
                45.013, 
                4.629, 
                43.974, 
                1.989, 
                -34.34, 
                -17.176, 
                40.142, 
                25.953, 
                -6.238
            ]
        }, 
        // ...
    ], 
    "tatums": [
        {
            "confidence": 0.629, 
            "duration": 0.20426, 
            "start": 0.30351
        }, 
        {
            "confidence": 0.575, 
            "duration": 0.20733, 
            "start": 0.50777
        }, 
        {
            "confidence": 0.537, 
            "duration": 0.20733, 
            "start": 0.7151
        }, 
        // ...
    ], 
    "track": {
        "analysis_channels": 1, 
        "analysis_sample_rate": 22050, 
        "code_version": 3.15, 
        "decoder": "ffmpeg", 
        "duration": 261.61442, 
        "echoprint_version": 4.12, 
        "end_of_fade_in": 0.25732, 
        "key": 7, 
        "key_confidence": 0.323, 
        "loudness": -9.342, 
        "mode": 1, 
        "mode_confidence": 0.664, 
        "num_samples": 5768598, 
        "offset_seconds": 0, 
        "sample_md5": "ae71f5ae9dfa34f06b1fb879c27276f2", 
        "start_of_fade_out": 261.61441, 
        "synch_version": 1.0, 
        "tempo": 148.155, 
        "tempo_confidence": 0.399, 
        "time_signature": 4, 
        "time_signature_confidence": 1.0, 
        "window_seconds": 0
        // ...
    }
}