======================== unified (from filesystem) ========================
                                         'bitrate'  '230.609'
                                        'duration'  '143'
                                          'artist'  'PJ Harvey'
                                     'text_people'  ''
                                         'release'  'Rid of Me'
                                           'title'  '50ft Queenie'
                                           'quals'  ("['Q-HAP-2', 'Q-UNU-1', 'Q-JZFKS-1', 'Q-LOCALNESS-1', 'Q-OLDST-3', "
 "'Q-HHRNBTT-1', 'q-syn-2', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-4', 'q-drums-3', 'q-other-3', 'q-piano-1', 'q-vocals-2', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  ("['alternative rock', 'alternative', 'rock', 'female vocalists', 'singer "
 "songwriter']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '8'
                                      'tracktotal'  ''
                                            'date'  '1993'
                                        'comments'  ''
                                           'genre'  'ifs-songwriter'
                                             'bpm'  '129.150'
                                             'key'  '7A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Rid of Me'
'TBPM' (BPM (beats per minute))                     '129.150'
'TCON' (Content type, a.k.a. Genre)                 'ifs-songwriter'
'TDRC' (Recording time)                             '1993'
'TIT2' (Title/songname/content description)         '50ft Queenie'
'TKEY' (Initial key)                                '7A'
'TPE1' (Lead performer(s)/Soloist(s))               'PJ Harvey'
'TRCK' (Track number/Position in set)               '8'
'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:lastfmtags'                                   ['alternative rock',
 'alternative',
 'rock',
 'female vocalists',
 'singer songwriter']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '4'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '2'
'TXXX:replaygain_track_gain'                        '-0.60 dB'
'TXXX:replaygain_track_peak'                        '0.637191'

========================== row from database ==========================
                                              'id'  171975
                                            'path'  /data/Music/Bulk/00singer-songwriter-eos/PJ Harvey/Rid of Me/MBZ;#PJ Harvey;#Rid of Me;#08;#50ft Queenie.mp3
                                         'working'  None
                                         'bitrate'  230
                                    'duration_sec'  143
                                           'genre'  ifs-songwriter
                                        'filesize'  4147698
                                           'mtime'  1623435957
                                   'redo_metaread'  0
                                        'rest_str'   00singer songwriter eos MBZ;#PJ Harvey;#Rid Me;#08;#50ft ifs songwriter
                                      'tag_artist'  PJ Harvey
                                     'tag_release'  Rid of Me
                                       'tag_title'  50ft Queenie
                                             'bpm'  129.15
                                    'search_title'  '50ft':1 'queenie':2
                                   'search_artist'  'harvey':2 'pj':1
                                  'search_release'  'me':3 'of':2 'rid':1
                                     'search_rest'  '00singer':1 '08':13,16 '50ft':14,17 'eos':3 'harvey':8,10 'ifs':18 'mbz':4,6 'me':12,15 'pj':5,7 'rid':9,11 'songwriter':2
                                    'search_combo'  '00singer':8 '08':20,23 '50ft':1A,21,24 'eos':10 'harvey':4B,15,17 'ifs':25 'mbz':11,13 'me':7C,19,22 'of':6C 'pj':3B,12,14 'queenie':2A 'rid':5C,16,18 'songwriter':9
                                    'tag_tracknum'  8
                                      'num_images'  0
                                             'key'  7A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-3', 'q-syn-2', 'q-chart-4', 'q-other-3', 'Q-HAP-2', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['alternative rock', 'alternative', 'rock', 'female vocalists', 'singer songwriter']
                                        'tag_date'  1993
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1623435956.8717964  (2021-06-11 20:25:56)
                             'size'  4147698