======================== unified (from filesystem) ========================
                                         'bitrate'  '256.0'
                                        'duration'  '95'
                                          'artist'  'Stock, Hausen & Walkman'
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                                           'title'  'Looking for a Thick Ear'
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 "'q-chart-1', 'q-drums-4', 'q-other-2', 'q-piano-1', 'q-vocals-2', "
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                                      'lastfmtags'  "['electronica', 'avant garde', 'electronic', 'experimental', 'sound collage']"
                                     'discogstags'  "['electronic', 'experimental']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '29'
                                      'tracktotal'  '60'
                                            'date'  '1993'
                                        'comments'  ''
                                           'genre'  'electronic-experimental-collage'
                                             'bpm'  '135.094'
                                             'key'  '2A'
                                        'acoustid'  'd316a4ce-b888-45f6-9a4f-7ac7276c7b9a'
rest: ''

======================== rawer (from filesystem) ========================

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'COMM:iTunPGAP:eng'                                 '0/'
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'COMM:iTunes_CDDB_IDs:eng'                          '60+CAF96323E5B9CB73C467A60012ACF9EC+2081318'
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'TBPM' (BPM (beats per minute))                     '135.094'
'TCON' (Content type, a.k.a. Genre)                 'electronic-experimental-collage'
'TDOR' (Original release time)                      '1993'
'TDRC' (Recording time)                             '1993'
'TENC' (Encoded by)                                 'iTunes v7.4.2'
'TIT2' (Title/songname/content description)         'Looking for a Thick Ear'
'TKEY' (Initial key)                                '2A'
'TMED' (Media type)                                 'CD'
'TPE1' (Lead performer(s)/Soloist(s))               'Stock, Hausen & Walkman'
'TPE2' (Band/orchestra/accompaniment)               'Stock, Hausen & Walkman'
'TPOS' (Part of a set)                              '1/1'
'TPUB' (Publisher)                                  'Hot Air'
'TRCK' (Track number/Position in set)               '29/60'
'TSO2'                                              'Stock, Hausen & Walkman'
'TSOP' (Performer sort order)                       'Stock, Hausen & Walkman'
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'TXXX:CATALOGNUMBER'                                'QRM CD 1'
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'TXXX:MusicBrainz Album Id'                         '0e05e984-ace9-4f5f-a38a-8f695f141336'
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'TXXX:MusicBrainz Release Group Id'                 'b0f21852-3b6a-3868-a4b0-b87038111466'
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'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '3'
'TXXX:SCRIPT'                                       'Latn'
'TXXX:discogstags'                                  ['electronic', 'experimental']
'TXXX:lastfmtags'                                   ['electronica', 'avant garde', 'electronic', 'experimental', 'sound collage']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '2'
'TXXX:replaygain_track_gain'                        '+0.17 dB'
'TXXX:replaygain_track_peak'                        '0.725171'
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========================== row from database ==========================
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                                            'path'  /data/Music/Bulk/00exnnpjpsprgttidm/0experimental_sound_projects/Stock, Hausen & Walkman/giving up with stock, hausen and walkman/29 Looking For A Thick Ear.mp3
                                         'working'  None
                                         'bitrate'  256
                                    'duration_sec'  95
                                           'genre'  electronic-experimental-collage
                                        'filesize'  3063774
                                           'mtime'  1636920660
                                   'redo_metaread'  0
                                        'rest_str'   00exnnpjpsprgttidm 0experimental_sound_projects giving up with stock, hausen and walkman 29 For A electronic experimental collage
                                      'tag_artist'  Stock, Hausen & Walkman
                                     'tag_release'  Giving Up
                                       'tag_title'  Looking for a Thick Ear
                                             'bpm'  135.094
                                    'search_title'  'a':3 'ear':5 'for':2 'looking':1 'thick':4
                                   'search_artist'  'hausen':3 'stock':1,2 'walkman':4
                                  'search_release'  'giving':1 'up':2
                                     'search_rest'  '0experimental':1 '29':12 'a':14 'and':10 'collage':17 'electronic':15 'experimental':16 'for':13 'giving':4 'hausen':9 'projects':3 'sound':2 'stock':7,8 'up':5 'walkman':11 'with':6
                                    'search_combo'  '0experimental':12 '29':23 'a':3A,25 'and':21 'collage':28 'ear':5A 'electronic':26 'experimental':27 'for':2A,24 'giving':10C,15 'hausen':8B,20 'looking':1A 'projects':14 'sound':13 'stock':6B,7B,18,19 'thick':4A 'up':11C,16 'walkman':9B,22 'with':17
                                    'tag_tracknum'  29
                                      'num_images'  0
                                             'key'  2A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-3', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-4', 'q-syn-2', 'q-chart-1', 'q-other-2', 'Q-HAP-2', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['electronica', 'avant garde', 'electronic', 'experimental', 'sound collage']
                                        'tag_date'  1993
                                     'discogstags'  ['electronic', 'experimental']

============================== file details ==============================
                                           'mtime'  1636920659.7650242  (2021-11-14 21:10:59)
                             'size'  3063774