======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '198'
                                          'artist'  'The Mountain Goats'
                                     'text_people'  'John Darnielle'
                                         'release'  'The Sunset Tree'
                                           'title'  "Dinu Lipatti's Bones"
                                           'quals'  ("['Q-HAP-2', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-OLDST-3', 'Q-JZFKS-1', "
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 "'q-chart-3', 'q-drums-1', 'q-other-2', 'q-vocals-4', 'q-mixbeat-1', "
 "'Q-PIANO-3']")
                                      'lastfmtags'  "['indie', 'acoustic', 'lo fi', 'folk', 'pxs: loved']"
                                     'discogstags'  "['rock', 'folk rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '6'
                                      'tracktotal'  ''
                                            'date'  '2005'
                                        'comments'  ''
                                           'genre'  'ifs-songwriter'
                                             'bpm'  '144.7'
                                             'key'  '1B'
                                        'acoustid'  ''
rest: ''

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

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'TALB' (Album/Movie/Show title)                     'The Sunset Tree'
'TBPM' (BPM (beats per minute))                     '144.7'
'TCOM' (Composer)                                   'John Darnielle'
'TCON' (Content type, a.k.a. Genre)                 'ifs-songwriter'
'TDRC' (Recording time)                             '2005'
'TENC' (Encoded by)                                 'iTunes v4.7.1.30'
'TIT2' (Title/songname/content description)         "Dinu Lipatti's Bones"
'TKEY' (Initial key)                                '1B'
'TPE1' (Lead performer(s)/Soloist(s))               'The Mountain Goats'
'TPE2' (Band/orchestra/accompaniment)               'The Mountain Goats'
'TPUB' (Publisher)                                  '4AD'
'TRCK' (Track number/Position in set)               '6'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-PIANO'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  ['rock', 'folk rock']
'TXXX:lastfmtags'                                   ['indie', 'acoustic', 'lo fi', 'folk', 'pxs: loved']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '2'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+2.24 dB'
'TXXX:replaygain_track_peak'                        '0.496754'

========================== row from database ==========================
                                              'id'  1513812
                                            'path'  /data/Music/Bulk/00poprockelectronic/The Mountain Goats/The Sunset Tree/06 dinu lipatti_s bones.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  198
                                           'genre'  ifs-songwriter
                                        'filesize'  4761302
                                           'mtime'  1628357238
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic 06 dinu lipatti_s bones ifs songwriter
                                      'tag_artist'  The Mountain Goats
                                     'tag_release'  The Sunset Tree
                                       'tag_title'  Dinu Lipatti's Bones
                                             'bpm'  144.7
                                    'search_title'  'bones':5 'dinu':1 'lipatti':2 'lipattis':4 's':3
                                   'search_artist'  'goats':3 'mountain':2 'the':1
                                  'search_release'  'sunset':2 'the':1 'tree':3
                                     'search_rest'  '00poprockelectronic':1 'bones':5 'dinu':2 'ifs':6 'lipatti':3 's':4 'songwriter':7
                                    'search_combo'  '00poprockelectronic':12 'bones':5A,16 'dinu':1A,13 'goats':8B 'ifs':17 'lipatti':2A,14 'lipattis':4A 'mountain':7B 's':3A,15 'songwriter':18 'sunset':10C 'the':6B,9C 'tree':11C
                                    'tag_tracknum'  6
                                      'num_images'  0
                                             'key'  1B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-1', 'q-mixbeat-1', 'Q-PIANO-3', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-1', 'q-syn-2', 'q-chart-3', 'q-other-2', 'Q-HAP-2', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  ['indie', 'acoustic', 'lo fi', 'folk', 'pxs: loved']
                                        'tag_date'  2005
                                     'discogstags'  ['rock', 'folk rock']

============================== file details ==============================
                                           'mtime'  1628357238.0485396  (2021-08-07 19:27:18)
                             'size'  4761302