======================== unified (from filesystem) ========================
                                         'bitrate'  '171.379'
                                        'duration'  '280'
                                          'artist'  'The Low Anthem'
                                     'text_people'  ''
                                         'release'  'Smart Flesh'
                                           'title'  'Hey, All You Hippies!'
                                           'quals'  ("['Q-HAP-2', 'Q-UNU-1', 'Q-LOCALNESS-2', 'Q-OLDST-1', 'Q-HHRNBTT-1', "
 "'Q-JZFKS-1', 'q-syn-2', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-2', 'q-drums-2', 'q-other-3', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['indie', 'acoustic', 'indie folk', 'americana', 'folk']"
                                     'discogstags'  "['folk, world, & country', 'folk']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '8'
                                      'tracktotal'  ''
                                            'date'  '2011'
                                        'comments'  ''
                                           'genre'  'ifs-songwriter-americana'
                                             'bpm'  '115.261'
                                             'key'  '8B'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Smart Flesh'
'TBPM' (BPM (beats per minute))                     '115.261'
'TCON' (Content type, a.k.a. Genre)                 'ifs-songwriter-americana'
'TDRC' (Recording time)                             '2011'
'TIT2' (Title/songname/content description)         'Hey, All You Hippies!'
'TKEY' (Initial key)                                '8B'
'TPE1' (Lead performer(s)/Soloist(s))               'The Low Anthem'
'TPE2' (Band/orchestra/accompaniment)               'The Low Anthem'
'TRCK' (Track number/Position in set)               '8'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '2'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  ['folk, world, & country', 'folk']
'TXXX:lastfmtags'                                   ['indie', 'acoustic', 'indie folk', 'americana', 'folk']
'TXXX:q-bass'                                       '4'
'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'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '+0.02 dB'
'TXXX:replaygain_track_peak'                        '0.318595'

========================== row from database ==========================
                                              'id'  1257630
                                            'path'  /data/Music/Bulk/00singer-songwriter-eos/the low anthem - smart flesh (2011) v2/08 hey, all you hippies!.mp3
                                         'working'  None
                                         'bitrate'  171
                                    'duration_sec'  280
                                           'genre'  ifs-songwriter-americana
                                        'filesize'  6018521
                                           'mtime'  1628355676
                                   'redo_metaread'  0
                                        'rest_str'   00singer songwriter eos low anthem smart flesh (2011) v2 08 hey, all you hippies! ifs songwriter americana
                                      'tag_artist'  The Low Anthem
                                     'tag_release'  Smart Flesh
                                       'tag_title'  Hey, All You Hippies!
                                             'bpm'  115.261
                                    'search_title'  'all':3 'hey':1,2 'hippies':5 'you':4
                                   'search_artist'  'anthem':3 'low':2 'the':1
                                  'search_release'  'flesh':2 'smart':1
                                     'search_rest'  '00singer':1 '2011':8,9 'all':13 'americana':17 'anthem':5 'eos':3 'flesh':7 'hey':11,12 'hippies':15 'ifs':16 'low':4 'smart':6 'songwriter':2 'v2':10 'you':14
                                    'search_combo'  '00singer':11 '2011':18,19 'all':3A,23 'americana':27 'anthem':8B,15 'eos':13 'flesh':10C,17 'hey':1A,2A,21,22 'hippies':5A,25 'ifs':26 'low':7B,14 'smart':9C,16 'songwriter':12 'the':6B 'v2':20 'you':4A,24
                                    'tag_tracknum'  8
                                      'num_images'  0
                                             'key'  8B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-2', 'q-piano-1', 'q-mixbeat-1', 'q-play-3', 'Q-OLDST-1', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-2', 'q-syn-2', 'q-chart-2', 'q-other-3', 'Q-HAP-2', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['indie', 'acoustic', 'indie folk', 'americana', 'folk']
                                        'tag_date'  2011
                                     'discogstags'  ['folk, world, & country', 'folk']

============================== file details ==============================
                                           'mtime'  1628355676.427262  (2021-08-07 19:01:16)
                             'size'  6018521