======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '120'
                                          'artist'  'Simon & Garfunkel'
                                     'text_people'  ''
                                         'release'  'The Collection'
                                           'title'  "7 O'Clock News / Silent Night"
                                           'quals'  ("['Q-HAP-2', 'Q-LOCALNESS-1', 'Q-UNU-1', 'Q-OLDST-3', 'Q-HHRNBTT-1', "
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 "'q-chart-4', 'q-drums-1', 'q-other-2', 'q-vocals-4', 'q-mixbeat-1', "
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                                      'lastfmtags'  "['acoustic', 'rock', 'singer songwriter', 'folk', 'classic rock']"
                                     'discogstags'  ("['rock', 'pop', 'folk, world, & country', 'folk rock', 'chanson', 'pop "
 "rock', 'country', 'folk', 'classic rock']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '42'
                                      'tracktotal'  '71'
                                            'date'  '2008'
                                        'comments'  ''
                                           'genre'  'ifs-songwriter-folk'
                                             'bpm'  '144.4'
                                             'key'  '4B'
                                        'acoustid'  '4c4ea42d-3776-4b97-a213-2a16639e0b86'
rest: ''

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

'TALB' (Album/Movie/Show title)                     'The Collection'
'TBPM' (BPM (beats per minute))                     '144.4'
'TCON' (Content type, a.k.a. Genre)                 'ifs-songwriter-folk'
'TDOR' (Original release time)                      '2008'
'TDRC' (Recording time)                             '2008'
'TIT2' (Title/songname/content description)         "7 O'Clock News / Silent Night"
'TKEY' (Initial key)                                '4B'
'TMED' (Media type)                                 'Digital Media'
'TPE1' (Lead performer(s)/Soloist(s))               'Simon & Garfunkel'
'TPE2' (Band/orchestra/accompaniment)               'Simon & Garfunkel'
'TPOS' (Part of a set)                              '1/1'
'TRCK' (Track number/Position in set)               '42/71'
'TSO2'                                              'Simon & Garfunkel'
'TSOP' (Performer sort order)                       'Simon & Garfunkel'
'TSRC' (ISRC (international standard recording code))  'USSM16600727/USSM16601267'
'TXXX:ASIN'                                         'B004LHNSDO'
'TXXX:Acoustid Id'                                  '4c4ea42d-3776-4b97-a213-2a16639e0b86'
'TXXX:MusicBrainz Album Artist Id'                  '5d02f264-e225-41ff-83f7-d9b1f0b1874a'
'TXXX:MusicBrainz Album Id'                         'b532363f-3e0d-40a3-b90c-1643e526f0f4'
'TXXX:MusicBrainz Album Status'                     'official'
'TXXX:MusicBrainz Album Type'                       'compilation'
'TXXX:MusicBrainz Artist Id'                        '5d02f264-e225-41ff-83f7-d9b1f0b1874a'
'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:SCRIPT'                                       'Latn'
'TXXX:discogstags'                                  ['rock',
 'pop',
 'folk, world, & country',
 'folk rock',
 'chanson',
 'pop rock',
 'country',
 'folk',
 'classic rock']
'TXXX:lastfmtags'                                   ['acoustic', 'rock', 'singer songwriter', 'folk', 'classic rock']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '4'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '2'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+0.11 dB'
'TXXX:replaygain_track_peak'                        '0.689189'
'UFID:http://musicbrainz.org'                       UFID(owner='http://musicbrainz.org', data=b'54e8bc86-3dc4-49a4-9838-3bb133f2abee')

========================== row from database ==========================
                                              'id'  1256788
                                            'path'  /data/Music/Bulk/00singer-songwriter-eos/Simon & Garfunkel - Simon and Garfunkel/Simon & Garfunkel - Silent Night.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  120
                                           'genre'  ifs-songwriter-folk
                                        'filesize'  1924209
                                           'mtime'  1621699806
                                   'redo_metaread'  0
                                        'rest_str'   00singer songwriter eos and ifs songwriter folk
                                      'tag_artist'  Simon & Garfunkel
                                     'tag_release'  The Collection
                                       'tag_title'  7 O'Clock News / Silent Night
                                             'bpm'  144.4
                                    'search_title'  '7':1 'clock':3 'news':5 'night':7 'o':2 'oclock':4 'silent':6
                                   'search_artist'  'garfunkel':2 'simon':1
                                  'search_release'  'collection':2 'the':1
                                     'search_rest'  '00singer':1 'and':4 'eos':3 'folk':6 'ifs':5 'songwriter':2
                                    'search_combo'  '00singer':12 '7':1A 'and':15 'clock':3A 'collection':11C 'eos':14 'folk':17 'garfunkel':9B 'ifs':16 'news':5A 'night':7A 'o':2A 'oclock':4A 'silent':6A 'simon':8B 'songwriter':13 'the':10C
                                    'tag_tracknum'  42
                                      'num_images'  0
                                             'key'  4B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-1', 'Q-PIANO-3', 'q-mixbeat-1', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-1', 'q-syn-1', 'q-chart-4', 'q-other-2', 'Q-HAP-2', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  ['acoustic', 'rock', 'singer songwriter', 'folk', 'classic rock']
                                        'tag_date'  2008
                                     'discogstags'  ['rock', 'pop', 'folk, world, & country', 'folk rock', 'chanson', 'pop rock', 'country', 'folk', 'classic rock']

============================== file details ==============================
                                           'mtime'  1621699805.8233118  (2021-05-22 18:10:05)
                             'size'  1924209