======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '121'
                                          'artist'  'Larry Kirby'
                                     'text_people'  ''
                                         'release'  'Let Me Go To The Hop'
                                           'title'  'Sweet Shop'
                                           'quals'  ("['Q-JZFKS-1', 'Q-LOCALNESS-1', 'Q-UNU-1', 'Q-HHRNBTT-1', 'Q-OLDST-1', "
 "'q-syn-1', 'q-bass-2', 'q-busy-3', 'q-grit-2', 'q-play-2', 'q-chart-2', "
 "'q-drums-2', 'q-other-3', 'q-piano-1', 'q-vocals-4', 'q-mixbeat-1']")
                                      'lastfmtags'  "['hippies']"
                                     'discogstags'  "['rock & roll', 'rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '03'
                                      'tracktotal'  ''
                                            'date'  '1950'
                                        'comments'  ''
                                           'genre'  'set-th-candy'
                                             'bpm'  '135.910'
                                             'key'  '6A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Let Me Go To The Hop'
'TBPM' (BPM (beats per minute))                     '135.910'
'TCON' (Content type, a.k.a. Genre)                 'set-th-candy'
'TDRC' (Recording time)                             '1950'
'TIT2' (Title/songname/content description)         'Sweet Shop'
'TKEY' (Initial key)                                '6A'
'TPE1' (Lead performer(s)/Soloist(s))               'Larry Kirby'
'TRCK' (Track number/Position in set)               '03'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  ['rock & roll', 'rock']
'TXXX:lastfmtags'                                   'hippies'
'TXXX:q-bass'                                       '2'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '2'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+1.19 dB'
'TXXX:replaygain_track_peak'                        '0.393922'

========================== row from database ==========================
                                              'id'  735876
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/sweets/Larry Kirby - Sweet Shop (Apollo, 1958).mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  121
                                           'genre'  set-th-candy
                                        'filesize'  1942812
                                           'mtime'  1620343118
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country sweets (Apollo, 1958) set th candy
                                      'tag_artist'  Larry Kirby
                                     'tag_release'  Let Me Go To The Hop
                                       'tag_title'  Sweet Shop
                                             'bpm'  135.91
                                    'search_title'  'shop':2 'sweet':1
                                   'search_artist'  'kirby':2 'larry':1
                                  'search_release'  'go':3 'hop':6 'let':1 'me':2 'the':5 'to':4
                                     'search_rest'  '1958':8,9 'apollo':6,7 'candy':12 'country':4 'exotica':2 'jazz':1 'oldies':3 'set':10 'sweets':5 'th':11
                                    'search_combo'  '1958':18,19 'apollo':16,17 'candy':22 'country':14 'exotica':12 'go':7C 'hop':10C 'jazz':11 'kirby':4B 'larry':3B 'let':5C 'me':6C 'oldies':13 'set':20 'shop':2A 'sweet':1A 'sweets':15 'th':21 'the':9C 'to':8C
                                    'tag_tracknum'  3
                                      'num_images'  0
                                             'key'  6A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-1', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-2', 'q-syn-1', 'q-chart-2', 'q-other-3', 'q-bass-2', 'q-grit-2']
                                      'lastfmtags'  ['hippies']
                                        'tag_date'  1950
                                     'discogstags'  ['rock & roll', 'rock']

============================== file details ==============================
                                           'mtime'  1620343118.14287  (2021-05-07 01:18:38)
                             'size'  1942812