======================== unified (from filesystem) ========================
                                         'bitrate'  '226.298'
                                        'duration'  '203'
                                          'artist'  'Blood Red Shoes'
                                     'text_people'  ''
                                         'release'  'You Bring Me Down (7-inch 2) Vinyl'
                                           'title'  'how to pass the time'
                                           'quals'  ("['Q-UNU-1', 'Q-JZFKS-1', 'Q-HHRNBTT-1', 'Q-LOCALNESS-1', 'Q-OLDST-2', "
 "'q-syn-2', 'q-bass-2', 'q-busy-3', 'q-grit-2', 'q-play-2', 'q-chart-2', "
 "'q-drums-4', 'q-other-3', 'q-piano-1', 'q-vocals-3', 'q-mixbeat-2']")
                                      'lastfmtags'  "['indie', 'garage rock', 'female vocalists', 'british', 'indie rock']"
                                     'discogstags'  "['rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '2'
                                      'tracktotal'  ''
                                            'date'  '2008'
                                        'comments'  ''
                                           'genre'  'rock-unsorted'
                                             'bpm'  '85.561'
                                             'key'  '8A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'You Bring Me Down (7-inch 2) Vinyl'
'TBPM' (BPM (beats per minute))                     '85.561'
'TCON' (Content type, a.k.a. Genre)                 'rock-unsorted'
'TDRC' (Recording time)                             '2008'
'TIT2' (Title/songname/content description)         'how to pass the time'
'TKEY' (Initial key)                                '8A'
'TPE1' (Lead performer(s)/Soloist(s))               'Blood Red Shoes'
'TRCK' (Track number/Position in set)               '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  'rock'
'TXXX:lastfmtags'                                   ['indie', 'garage rock', 'female vocalists', 'british', 'indie rock']
'TXXX:q-bass'                                       '2'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '-0.64 dB'
'TXXX:replaygain_track_peak'                        '0.490808'

========================== row from database ==========================
                                              'id'  1296052
                                            'path'  /data/Music/Bulk/00poprockelectronic/B-Sides/0219 Blood Red Shoes - How To Pass The Time (B).mp3
                                         'working'  None
                                         'bitrate'  226
                                    'duration_sec'  203
                                           'genre'  rock-unsorted
                                        'filesize'  5762551
                                           'mtime'  1620389215
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic Sides 0219 How To Pass The Time (B) rock unsorted
                                      'tag_artist'  Blood Red Shoes
                                     'tag_release'  You Bring Me Down (7-inch 2) Vinyl
                                       'tag_title'  how to pass the time
                                             'bpm'  85.561
                                    'search_title'  'how':1 'pass':3 'the':4 'time':5 'to':2
                                   'search_artist'  'blood':1 'red':2 'shoes':3
                                  'search_release'  '2':8,9 '7':5 '7inch':7 'bring':2 'down':4 'inch':6 'me':3 'vinyl':10 'you':1
                                     'search_rest'  '00poprockelectronic':1 '0219':3 'b':9,10 'how':4 'pass':6 'rock':11 'sides':2 'the':7 'time':8 'to':5 'unsorted':12
                                    'search_combo'  '00poprockelectronic':19 '0219':21 '2':16C,17C '7':13C '7inch':15C 'b':27,28 'blood':6B 'bring':10C 'down':12C 'how':1A,22 'inch':14C 'me':11C 'pass':3A,24 'red':7B 'rock':29 'shoes':8B 'sides':20 'the':4A,25 'time':5A,26 'to':2A,23 'unsorted':30 'vinyl':18C 'you':9C
                                    'tag_tracknum'  2
                                      'num_images'  0
                                             'key'  8A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-2', 'q-play-2', 'Q-OLDST-2', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-4', 'q-syn-2', 'q-chart-2', 'q-other-3', 'q-bass-2', 'q-grit-2']
                                      'lastfmtags'  ['indie', 'garage rock', 'female vocalists', 'british', 'indie rock']
                                        'tag_date'  2008
                                     'discogstags'  ['rock']

============================== file details ==============================
                                           'mtime'  1620389214.9512615  (2021-05-07 14:06:54)
                             'size'  5762551