======================== unified (from filesystem) ========================
                                         'bitrate'  '242.435'
                                        'duration'  '229'
                                          'artist'  'Camera Obscura'
                                     'text_people'  ''
                                         'release'  'Pitchfork: The Top 500 Tracks of the 2000s'
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                                      'lastfmtags'  "['indie', 'indie pop', 'female vocalists', 'twee', 'scottish']"
                                     'discogstags'  "['rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
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                                      'tracktotal'  ''
                                            'date'  '2005'
                                        'comments'  ''
                                           'genre'  'electronic-generic or radio-unsorted;ifs-songwriter-indie-pop'
                                             'bpm'  '143.314'
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                                        'acoustid'  ''
rest: ''

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

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'TBPM' (BPM (beats per minute))                     '143.314'
'TCON' (Content type, a.k.a. Genre)                 ['electronic-generic or radio-unsorted', 'ifs-songwriter-indie-pop']
'TDRC' (Recording time)                             '2005'
'TIT2' (Title/songname/content description)         "Lloyd, I'm Ready to Be Heartbroken"
'TKEY' (Initial key)                                '1B'
'TPE1' (Lead performer(s)/Soloist(s))               'Camera Obscura'
'TRCK' (Track number/Position in set)               '118'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  'rock'
'TXXX:lastfmtags'                                   ['indie', 'indie pop', 'female vocalists', 'twee', 'scottish']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '4'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '+17.80 dB'
'TXXX:replaygain_track_peak'                        '0.039336'

========================== row from database ==========================
                                              'id'  1501907
                                            'path'  /data/Music/Bulk/00poprockelectronic/VA - Pitchfork - The Top 500 Tracks of the 2000s/118 - Camera Obscura - Lloyd, I_m Ready to Be Heartbroken.mp3
                                         'working'  None
                                         'bitrate'  243
                                    'duration_sec'  229
                                           'genre'  electronic-generic or radio-unsorted;ifs-songwriter-indie-pop
                                        'filesize'  6970502
                                           'mtime'  1642256482
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic VA 118 I_m electronic generic radio unsorted;ifs songwriter indie pop
                                      'tag_artist'  Camera Obscura
                                     'tag_release'  Pitchfork: The Top 500 Tracks of the 2000s
                                       'tag_title'  Lloyd, I'm Ready to Be Heartbroken
                                             'bpm'  143.314
                                    'search_title'  'be':8 'heartbroken':9 'i':3 'im':5 'lloyd':1,2 'm':4 'ready':6 'to':7
                                   'search_artist'  'camera':1 'obscura':2
                                  'search_release'  '2000s':8 '500':5 'of':7 'pitchfork':1,2 'the':3 'top':4 'tracks':6
                                     'search_rest'  '00poprockelectronic':1 '118':3 'electronic':6 'generic':7 'i':4 'ifs':10,12 'indie':14 'm':5 'pop':15 'radio':8 'songwriter':13 'unsorted':9,11 'va':2
                                    'search_combo'  '00poprockelectronic':20 '118':22 '2000s':19C '500':16C 'be':8A 'camera':10B 'electronic':25 'generic':26 'heartbroken':9A 'i':3A,23 'ifs':29,31 'im':5A 'indie':33 'lloyd':1A,2A 'm':4A,24 'obscura':11B 'of':18C 'pitchfork':12C,13C 'pop':34 'radio':27 'ready':6A 'songwriter':32 'the':14C 'to':7A 'top':15C 'tracks':17C 'unsorted':28,30 'va':21
                                    'tag_tracknum'  118
                                      'num_images'  0
                                             'key'  1B
                                           'quals'  ['Q-HAP-2', 'Q-OLDST-3', 'Q-LOCALNESS-1', 'Q-JZFKS-1', 'Q-HHRNBTT-1', 'Q-UNU-1', 'q-syn-2', 'q-bass-3', 'q-busy-3', 'q-grit-2', 'q-play-2', 'q-chart-4', 'q-drums-3', 'q-other-3', 'q-piano-1', 'q-vocals-3', 'q-mixbeat-2']
                                      'lastfmtags'  ['indie', 'indie pop', 'female vocalists', 'twee', 'scottish']
                                        'tag_date'  2005
                                     'discogstags'  ['rock']

============================== file details ==============================
                                           'mtime'  1642256481.5350518  (2022-01-15 15:21:21)
                             'size'  6970502