======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '576'
                                          'artist'  'The Tea Party'
                                     'text_people'  'The Tea Party'
                                         'release'  'Live From Australia'
                                           'title'  'The River'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'Q-JZFKS-1', 'Q-HHRNBTT-1', 'Q-LOCALNESS-1', "
 "'Q-OLDST-2', 'q-syn-2', 'q-bass-3', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-2', 'q-drums-4', 'q-other-3', 'q-piano-1', 'q-vocals-2', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['alternative rock', 'alternative', 'canadian', 'progressive rock', 'rock']"
                                     'discogstags'  "['rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '1'
                                      'tracktotal'  '17'
                                            'date'  '2012'
                                        'comments'  ''
                                           'genre'  'rock-cppex-progressive'
                                             'bpm'  '105.9'
                                             'key'  '12B'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Live From Australia'
'TBPM' (BPM (beats per minute))                     '105.9'
'TCOM' (Composer)                                   'The Tea Party'
'TCON' (Content type, a.k.a. Genre)                 'rock-cppex-progressive'
'TDRC' (Recording time)                             '2012'
'TIT2' (Title/songname/content description)         'The River'
'TKEY' (Initial key)                                '12B'
'TPE1' (Lead performer(s)/Soloist(s))               'The Tea Party'
'TPE2' (Band/orchestra/accompaniment)               'The Tea Party'
'TRCK' (Track number/Position in set)               '1/17'
'TXXX:Q-HAP'                                        '3'
'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'                                   ['alternative rock', 'alternative', 'canadian', 'progressive rock', 'rock']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '2'
'TXXX:replaygain_track_gain'                        '-0.35 dB'
'TXXX:replaygain_track_peak'                        '0.411761'

========================== row from database ==========================
                                              'id'  1269285
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/Oscar Alemán - cd1/The Tea Party/01 - The River.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  576
                                           'genre'  rock-cppex-progressive
                                        'filesize'  23049589
                                           'mtime'  1620735965
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country Oscar Alemán cd1 01 rock cppex progressive
                                      'tag_artist'  The Tea Party
                                     'tag_release'  Live From Australia
                                       'tag_title'  The River
                                             'bpm'  105.9
                                    'search_title'  'river':2 'the':1
                                   'search_artist'  'party':3 'tea':2 'the':1
                                  'search_release'  'australia':3 'from':2 'live':1
                                     'search_rest'  'aleman':6,7 'cd1':8 'country':4 'cppex':10 'exotica':2 'jazz':1 'oldies':3 'oscar':5 'progressive':11 'rock':9
                                    'search_combo'  'aleman':14,15 'australia':8C 'cd1':16 'country':12 'cppex':18 'exotica':10 'from':7C 'jazz':9 'live':6C 'oldies':11 'oscar':13 'party':5B 'progressive':19 'river':2A 'rock':17 'tea':4B 'the':1A,3B
                                    'tag_tracknum'  1
                                      'num_images'  0
                                             'key'  12B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', '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-HAP-3', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['alternative rock', 'alternative', 'canadian', 'progressive rock', 'rock']
                                        'tag_date'  2012
                                     'discogstags'  ['rock']

============================== file details ==============================
                                           'mtime'  1620735965.4649522  (2021-05-11 14:26:05)
                             'size'  23049589