======================== unified (from filesystem) ========================
                                         'bitrate'  '157.196'
                                        'duration'  '204'
                                          'artist'  'U Roy'
                                     'text_people'  ''
                                         'release'  'Reggae Singles'
                                           'title'  'The Hudson Affair'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-3', 'Q-UNU-2', 'Q-HHRNBTT-2', 'Q-OLDST-2', "
 "'Q-LOCALNESS-3', 'q-syn-2', 'q-bass-4', 'q-busy-2', 'q-grit-2', 'q-play-3', "
 "'q-chart-2', 'q-drums-1', 'q-other-2', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  "['reggae', 'roots reggae', 'dub', 'roots', 'rocksteady']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'loc-style-reggae or dub or ska or dancehall-dub-roots and reggae'
                                             'bpm'  '92.349'
                                             'key'  '7A'
                                        'acoustid'  ''
rest: ''

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

'PRIV:AverageLevel:S\x18\x00\x00'                   PRIV(owner='AverageLevel', data=b'S\x18\x00\x00')
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'TALB' (Album/Movie/Show title)                     'Reggae Singles'
'TBPM' (BPM (beats per minute))                     '92.349'
'TCON' (Content type, a.k.a. Genre)                 'loc-style-reggae or dub or ska or dancehall-dub-roots and reggae'
'TIT2' (Title/songname/content description)         'The Hudson Affair'
'TKEY' (Initial key)                                '7A'
'TLEN' (Length)                                     '204000'
'TPE1' (Lead performer(s)/Soloist(s))               'U Roy'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '2'
'TXXX:Q-JZFKS'                                      '3'
'TXXX:Q-LOCALNESS'                                  '3'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '2'
'TXXX:lastfmtags'                                   ['reggae', 'roots reggae', 'dub', 'roots', 'rocksteady']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '+3.11 dB'
'TXXX:replaygain_track_peak'                        '0.419934'

========================== row from database ==========================
                                              'id'  985278
                                            'path'  /data/Music/Bulk/00localcharacter/reggae singles/[uk_green door_gd 4034-a_1972] u roy - the hudson affair.mp3
                                         'working'  None
                                         'bitrate'  157
                                    'duration_sec'  204
                                           'genre'  loc-style-reggae or dub or ska or dancehall-dub-roots and reggae
                                        'filesize'  4018048
                                           'mtime'  1620524194
                                   'redo_metaread'  0
                                        'rest_str'   00localcharacter reggae singles [uk_green door_gd 4034 a_1972] roy the hudson affair loc style reggae or dub or ska or dancehall dub roots and reggae
                                      'tag_artist'  U Roy
                                     'tag_release'  Reggae Singles
                                       'tag_title'  The Hudson Affair
                                             'bpm'  92.349
                                    'search_title'  'affair':3 'hudson':2 'the':1
                                   'search_artist'  'roy':2 'u':1
                                  'search_release'  'reggae':1 'singles':2
                                     'search_rest'  '1972':11,13 '4034':9 'a':10,12 'affair':17 'and':25 'dancehall':23 'door':7 'dub':21 'gd':8 'green':4,6 'hudson':16 'loc':18 'or':20 'reggae':1 'roots':24 'roy':14 'singles':2 'ska':22 'style':19 'the':15 'uk':3,5
                                    'search_combo'  '1972':18,20 '4034':16 'a':17,19 'affair':3A,24 'and':32 'dancehall':30 'door':14 'dub':28 'gd':15 'green':11,13 'hudson':2A,23 'loc':25 'or':27 'reggae':6C,8 'roots':31 'roy':5B,21 'singles':7C,9 'ska':29 'style':26 'the':1A,22 'u':4B 'uk':10,12
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  7A
                                           'quals'  ['Q-HHRNBTT-2', 'q-vocals-3', 'Q-LOCALNESS-3', 'q-piano-1', 'q-mixbeat-2', 'q-play-3', 'Q-OLDST-2', 'Q-UNU-2', 'Q-JZFKS-3', 'q-busy-2', 'q-drums-1', 'q-syn-2', 'q-chart-2', 'q-other-2', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['reggae', 'roots reggae', 'dub', 'roots', 'rocksteady']
                                        'tag_date'  
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620524193.7208676  (2021-05-09 03:36:33)
                             'size'  4018048