======================== unified (from filesystem) ========================
                                         'bitrate'  '187.549'
                                        'duration'  '422'
                                          'artist'  'Andrew Bird'
                                     'text_people'  ''
                                         'release'  'Armchair Apocrypha'
                                           'title'  'Armchairs'
                                           'quals'  ("['Q-HAP-3', 'Q-LOCALNESS-1', 'Q-UNU-1', 'Q-JZFKS-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-2', 'q-syn-2', 'q-bass-3', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-3', 'q-drums-2', 'q-other-3', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['indie', 'indie pop', 'alternative', 'folk', 'singer songwriter']"
                                     'discogstags'  "['rock', 'pop', 'acoustic']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '5'
                                      'tracktotal'  ''
                                            'date'  '2007'
                                        'comments'  ''
                                           'genre'  'ifs-songwriter-indie-unsorted'
                                             'bpm'  '142.708'
                                             'key'  '9A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Armchair Apocrypha'
'TBPM' (BPM (beats per minute))                     '142.708'
'TCON' (Content type, a.k.a. Genre)                 'ifs-songwriter-indie-unsorted'
'TDRC' (Recording time)                             '2007'
'TENC' (Encoded by)                                 'Exact Audio Copy   (Secure mode)'
'TIT2' (Title/songname/content description)         'Armchairs'
'TKEY' (Initial key)                                '9A'
'TPE1' (Lead performer(s)/Soloist(s))               'Andrew Bird'
'TRCK' (Track number/Position in set)               '5'
'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', 'pop', 'acoustic']
'TXXX:lastfmtags'                                   ['indie', 'indie pop', 'alternative', 'folk', 'singer songwriter']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
'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'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '+1.41 dB'
'TXXX:replaygain_track_peak'                        '0.434890'

========================== row from database ==========================
                                              'id'  1522550
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/Andrew Bird_s Bowl of Fire - Andrew Bird/Armchair Apocrypha [2007]/05 - Armchairs.mp3
                                         'working'  None
                                         'bitrate'  187
                                    'duration_sec'  422
                                           'genre'  ifs-songwriter-indie-unsorted
                                        'filesize'  9914368
                                           'mtime'  1621510504
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country Bird_s Bowl of Fire [2007] 05 ifs songwriter indie unsorted
                                      'tag_artist'  Andrew Bird
                                     'tag_release'  Armchair Apocrypha
                                       'tag_title'  Armchairs
                                             'bpm'  142.708
                                    'search_title'  'armchairs':1
                                   'search_artist'  'andrew':1 'bird':2
                                  'search_release'  'apocrypha':2 'armchair':1
                                     'search_rest'  '2007':10,11 'bird':5 'bowl':7 'country':4 'exotica':2 'fire':9 'ifs':12 'indie':14 'jazz':1 'of':8 'oldies':3 's':6 'songwriter':13 'unsorted':15
                                    'search_combo'  '2007':15,16 'andrew':2B 'apocrypha':5C 'armchair':4C 'armchairs':1A 'bird':3B,10 'bowl':12 'country':9 'exotica':7 'fire':14 'ifs':17 'indie':19 'jazz':6 'of':13 'oldies':8 's':11 'songwriter':18 'unsorted':20
                                    'tag_tracknum'  5
                                      'num_images'  0
                                             'key'  9A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', '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-2', 'q-syn-2', 'q-chart-3', 'q-other-3', 'Q-HAP-3', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['indie', 'indie pop', 'alternative', 'folk', 'singer songwriter']
                                        'tag_date'  2007
                                     'discogstags'  ['rock', 'pop', 'acoustic']

============================== file details ==============================
                                           'mtime'  1621510503.5304444  (2021-05-20 13:35:03)
                             'size'  9914368