======================== unified (from filesystem) ========================
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                                        'duration'  '395'
                                          'artist'  'Syntax'
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                                         'release'  'Bliss'
                                           'title'  'Bliss (Felix Da Housecat dub mix edit)'
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                                      'lastfmtags'  "['electronica', 'trip hop', 'synth pop', 'electronic', 'chillout']"
                                     'discogstags'  "['electronic', 'drum n bass']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '4'
                                      'tracktotal'  '5'
                                            'date'  '2004'
                                        'comments'  ''
                                           'genre'  'electronic-we-electropop or synthpop'
                                             'bpm'  '128.008'
                                             'key'  '2B'
                                        'acoustid'  ''
rest: ''

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

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'TALB' (Album/Movie/Show title)                     'Bliss'
'TBPM' (BPM (beats per minute))                     '128.008'
'TCON' (Content type, a.k.a. Genre)                 'electronic-we-electropop or synthpop'
'TDRC' (Recording time)                             '2004'
'TIT2' (Title/songname/content description)         'Bliss (Felix Da Housecat dub mix edit)'
'TKEY' (Initial key)                                '2B'
'TPE1' (Lead performer(s)/Soloist(s))               'Syntax'
'TPE2' (Band/orchestra/accompaniment)               'Syntax'
'TRCK' (Track number/Position in set)               '4/5'
'TSOP' (Performer sort order)                       'Syntax'
'TXXX:ALBUMARTISTSORT'                              'Syntax'
'TXXX:MP3GAIN_UNDO'                                 '+003,+003,N'
'TXXX:MusicBrainz Album Artist Id'                  'c2567d0b-7af7-4ffd-9f9d-b54ef0137a24'
'TXXX:MusicBrainz Album Id'                         '895bcd86-732c-4759-94c6-712a0381d4c1'
'TXXX:MusicBrainz Album Status'                     'official'
'TXXX:MusicBrainz Album Type'                       'single'
'TXXX:MusicBrainz Artist Id'                        'c2567d0b-7af7-4ffd-9f9d-b54ef0137a24'
'TXXX:MusicIP PUID'                                 'bf4c953d-22ce-3707-62d0-6247e1fb8601'
'TXXX:MusicMagic Data'                              'AgEAOTIfneu6fLYHgV0aEkuSDbCOSIMru96SgV13ptnysoABgAGx0qzArAi5ifw1hjOAAeksjIgDggm/gGDfGexv6P+hBcs4gAKAAapzrRK1uIHl+nBLU6/OhraJQ9JqlTNd47m770qgAYTKy+myD6+6sOjCIoUtgAH9p6FCEijzkolr6iLsSACgsZ3lLo3sgK4='
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'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:added_timestamp'                              '128930990202923527'
'TXXX:discogstags'                                  ['electronic', 'drum n bass']
'TXXX:first_played_timestamp'                       '129128179226333824'
'TXXX:last_played_timestamp'                        '129128817807858598'
'TXXX:lastfmtags'                                   ['electronica', 'trip hop', 'synth pop', 'electronic', 'chillout']
'TXXX:play_count'                                   '3'
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '2'
'TXXX:replaygain_track_gain'                        '+0.01 dB'
'TXXX:replaygain_track_peak'                        '0.498963'

========================== row from database ==========================
                                              'id'  1357785
                                            'path'  /data/Music/Bulk/00poprockelectronic/Unsorted/[loose files]/syntax - bliss (felix da housecat vocal remix)(2).mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  395
                                           'genre'  electronic-we-electropop or synthpop
                                        'filesize'  9508284
                                           'mtime'  1628353852
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic Unsorted [loose files] syntax bliss (felix da housecat vocal remix)(2) electronic we electropop or synthpop
                                      'tag_artist'  Syntax
                                     'tag_release'  Bliss
                                       'tag_title'  Bliss (Felix Da Housecat dub mix edit)
                                             'bpm'  128.008
                                    'search_title'  'bliss':1 'da':4 'dub':6 'edit':8,9 'felix':2,3 'housecat':5 'mix':7
                                   'search_artist'  'syntax':1
                                  'search_release'  'bliss':1
                                     'search_rest'  '00poprockelectronic':1 '2':15 'bliss':8 'da':11 'electronic':17 'electropop':19 'felix':9,10 'files':5,6 'housecat':12 'loose':3,4 'or':20 'remix':14 'remix2':16 'syntax':7 'synthpop':21 'unsorted':2 'vocal':13 'we':18
                                    'search_combo'  '00poprockelectronic':12 '2':26 'bliss':1A,11C,19 'da':4A,22 'dub':6A 'edit':8A,9A 'electronic':28 'electropop':30 'felix':2A,3A,20,21 'files':16,17 'housecat':5A,23 'loose':14,15 'mix':7A 'or':31 'remix':25 'remix2':27 'syntax':10B,18 'synthpop':32 'unsorted':13 'vocal':24 'we':29
                                    'tag_tracknum'  4
                                      'num_images'  0
                                             'key'  2B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-2', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-3', 'q-syn-2', 'q-chart-2', 'q-other-2', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['electronica', 'trip hop', 'synth pop', 'electronic', 'chillout']
                                        'tag_date'  2004
                                     'discogstags'  ['electronic', 'drum n bass']

============================== file details ==============================
                                           'mtime'  1628353851.5302987  (2021-08-07 18:30:51)
                             'size'  9508284