======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '166'
                                          'artist'  'Spacemen'
                                     'text_people'  ''
                                         'release'  'Rockfile Vol. 070'
                                           'title'  'The Clouds'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-LOCALNESS-1', 'Q-UNU-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-1', 'q-syn-1', 'q-bass-4', 'q-busy-2', 'q-grit-1', 'q-play-2', "
 "'q-chart-1', 'q-drums-4', 'q-other-2', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['all', 'breakbeat', 'progressive', 'electronica', 'breaks']"
                                     'discogstags'  "['electronic']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '15'
                                      'tracktotal'  ''
                                            'date'  '1959'
                                        'comments'  ''
                                           'genre'  'prerock-unsorted'
                                             'bpm'  '104.122'
                                             'key'  '5B'
                                        'acoustid'  ''
rest: ''

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

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'TALB' (Album/Movie/Show title)                     'Rockfile Vol. 070'
'TBPM' (BPM (beats per minute))                     '104.122'
'TCON' (Content type, a.k.a. Genre)                 'prerock-unsorted'
'TDRC' (Recording time)                             '1959'
'TIT2' (Title/songname/content description)         'The Clouds'
'TKEY' (Initial key)                                '5B'
'TPE1' (Lead performer(s)/Soloist(s))               'Spacemen'
'TRCK' (Track number/Position in set)               '15'
'TSSE' (Software/Hardware and settings used for encoding)  'Audiograbber 1.80, Fraunhofer acm, 320 kBit/s, 44,100 Hz, Stereo, HQ = on'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  'electronic'
'TXXX:lastfmtags'                                   ['all', 'breakbeat', 'progressive', 'electronica', 'breaks']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '1'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '+1.35 dB'
'TXXX:replaygain_track_peak'                        '0.546305'

========================== row from database ==========================
                                              'id'  1427705
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/00oldiepop/1959/59-252 - Spacemen - The Clouds.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  166
                                           'genre'  prerock-unsorted
                                        'filesize'  6680732
                                           'mtime'  1621698411
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 00oldiepop 1959 59 252 prerock unsorted
                                      'tag_artist'  Spacemen
                                     'tag_release'  Rockfile Vol. 070
                                       'tag_title'  The Clouds
                                             'bpm'  104.122
                                    'search_title'  'clouds':2 'the':1
                                   'search_artist'  'spacemen':1
                                  'search_release'  'rockfile':1 'vol':2,3
                                     'search_rest'  '00oldiepop':5 '1959':6 '252':8 '59':7 'country':4 'exotica':2 'jazz':1 'oldies':3 'prerock':9 'unsorted':10
                                    'search_combo'  '00oldiepop':11 '1959':12 '252':14 '59':13 'clouds':2A 'country':10 'exotica':8 'jazz':7 'oldies':9 'prerock':15 'rockfile':4C 'spacemen':3B 'the':1A 'unsorted':16 'vol':5C,6C
                                    'tag_tracknum'  15
                                      'num_images'  0
                                             'key'  5B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-1', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-2', 'q-drums-4', 'q-syn-1', 'q-chart-1', 'q-other-2', 'Q-HAP-3', 'q-bass-4', 'q-grit-1']
                                      'lastfmtags'  ['all', 'breakbeat', 'progressive', 'electronica', 'breaks']
                                        'tag_date'  1959
                                     'discogstags'  ['electronic']

============================== file details ==============================
                                           'mtime'  1621698410.7983472  (2021-05-22 17:46:50)
                             'size'  6680732