======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '275'
                                          'artist'  'Johnny Cash'
                                     'text_people'  ''
                                         'release'  'American III : Solitary Man'
                                           'title'  'The Mercy Seat'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-UNU-1', 'Q-OLDST-3', 'Q-HHRNBTT-1', "
 "'Q-LOCALNESS-3', 'Q-PLAY-2', 'q-syn-1', 'q-bass-2', 'q-busy-2', 'q-grit-2', "
 "'Q-PIANO-2', 'q-chart-4', 'q-drums-1', 'q-other-3', 'q-vocals-3', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['country', 'singer songwritergdchill', 'cover', 'singer songwriter']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '7'
                                      'tracktotal'  ''
                                            'date'  '2000'
                                        'comments'  ''
                                           'genre'  'loc-namerica-country'
                                             'bpm'  '86.4'
                                             'key'  '8A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'COMM:ID3v1:eng'                                    'The Mercy Seat'
'TALB' (Album/Movie/Show title)                     'American III : Solitary Man'
'TBPM' (BPM (beats per minute))                     '86.4'
'TCON' (Content type, a.k.a. Genre)                 'loc-namerica-country'
'TDRC' (Recording time)                             '2000'
'TIT2' (Title/songname/content description)         'The Mercy Seat'
'TKEY' (Initial key)                                '8A'
'TPE1' (Lead performer(s)/Soloist(s))               'Johnny Cash'
'TPE2' (Band/orchestra/accompaniment)               'Johnny Cash'
'TRCK' (Track number/Position in set)               '7'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '3'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-PIANO'                                      '2'
'TXXX:Q-PLAY'                                       '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['country', 'singer songwritergdchill', 'cover', 'singer songwriter']
'TXXX:q-bass'                                       '2'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '4'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '-0.94 dB'
'TXXX:replaygain_track_peak'                        '0.465244'

========================== row from database ==========================
                                              'id'  1386105
                                            'path'  /data/Music/Bulk/00singer-songwriter-eos/Johnny Cash_/American III - Solitary Man/johnny cash - american iii. solitary man - 07 - the mercy seat.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  275
                                           'genre'  loc-namerica-country
                                        'filesize'  6620849
                                           'mtime'  1621630276
                                   'redo_metaread'  0
                                        'rest_str'   00singer songwriter eos Cash_ johnny cash american iii. solitary man 07 the mercy seat loc namerica country
                                      'tag_artist'  Johnny Cash
                                     'tag_release'  American III : Solitary Man
                                       'tag_title'  The Mercy Seat
                                             'bpm'  86.4
                                    'search_title'  'mercy':2 'seat':3 'the':1
                                   'search_artist'  'cash':2 'johnny':1
                                  'search_release'  'american':1 'iii':2 'man':4 'solitary':3
                                     'search_rest'  '00singer':1 'american':7 'cash':4,6 'country':17 'eos':3 'iii':8,9 'johnny':5 'loc':15 'man':11 'mercy':13 'namerica':16 'seat':14 'solitary':10 'songwriter':2 'the':12
                                    'search_combo'  '00singer':10 'american':6C,16 'cash':5B,13,15 'country':26 'eos':12 'iii':7C,17,18 'johnny':4B,14 'loc':24 'man':9C,20 'mercy':2A,22 'namerica':25 'seat':3A,23 'solitary':8C,19 'songwriter':11 'the':1A,21
                                    'tag_tracknum'  7
                                      'num_images'  1
                                             'key'  8A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-3', 'q-mixbeat-1', 'Q-PIANO-2', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-2', 'q-drums-1', 'q-syn-1', 'q-chart-4', 'q-other-3', 'Q-HAP-3', 'Q-PLAY-2', 'q-bass-2', 'q-grit-2']
                                      'lastfmtags'  ['country', 'singer songwritergdchill', 'cover', 'singer songwriter']
                                        'tag_date'  2000
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1621630275.9207995  (2021-05-21 22:51:15)
                             'size'  6620849