======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '260'
                                          'artist'  'Eleni Mandell'
                                     'text_people'  ''
                                         'release'  'Country for True Lovers'
                                           'title'  'Another Lonely Heart'
                                           'quals'  ("['Q-HAP-3', 'Q-LOCALNESS-1', 'Q-UNU-1', 'Q-OLDST-3', 'Q-HHRNBTT-1', "
 "'Q-JZFKS-2', 'q-syn-2', 'q-bass-2', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-2', 'q-drums-3', 'q-other-2', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['alt country', 'jazz', 'female vocalists', 'folk', 'singer songwriter']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '1'
                                      'tracktotal'  '12'
                                            'date'  '2003'
                                        'comments'  ''
                                           'genre'  'ifs-songwriter-jazz'
                                             'bpm'  '84.000'
                                             'key'  '8B'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'TALB' (Album/Movie/Show title)                     'Country for True Lovers'
'TBPM' (BPM (beats per minute))                     '84.000'
'TCON' (Content type, a.k.a. Genre)                 'ifs-songwriter-jazz'
'TDRC' (Recording time)                             '2003'
'TIT2' (Title/songname/content description)         'Another Lonely Heart'
'TKEY' (Initial key)                                '8B'
'TPE1' (Lead performer(s)/Soloist(s))               'Eleni Mandell'
'TRCK' (Track number/Position in set)               '1/12'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '2'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['alt country', 'jazz', 'female vocalists', 'folk', 'singer songwriter']
'TXXX:q-bass'                                       '2'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+1.08 dB'
'TXXX:replaygain_track_peak'                        '0.645554'

========================== row from database ==========================
                                              'id'  244069
                                            'path'  /data/Music/Bulk/00singer-songwriter-eos/Eleni Mandell/01 Another Lonely Heart.mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  260
                                           'genre'  ifs-songwriter-jazz
                                        'filesize'  5236276
                                           'mtime'  1622762377
                                   'redo_metaread'  0
                                        'rest_str'   00singer songwriter eos 01 ifs songwriter jazz
                                      'tag_artist'  Eleni Mandell
                                     'tag_release'  Country for True Lovers
                                       'tag_title'  Another Lonely Heart
                                             'bpm'  84.0
                                    'search_title'  'another':1 'heart':3 'lonely':2
                                   'search_artist'  'eleni':1 'mandell':2
                                  'search_release'  'country':1 'for':2 'lovers':4 'true':3
                                     'search_rest'  '00singer':1 'eos':3 'ifs':4 'jazz':5 'songwriter':2
                                    'search_combo'  '00singer':10 'another':1A 'country':6C 'eleni':4B 'eos':12 'for':7C 'heart':3A 'ifs':13 'jazz':14 'lonely':2A 'lovers':9C 'mandell':5B 'songwriter':11 'true':8C
                                    'tag_tracknum'  1
                                      'num_images'  1
                                             'key'  8B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-2', 'q-busy-3', 'q-drums-3', 'q-syn-2', 'q-chart-2', 'q-other-2', 'Q-HAP-3', 'q-bass-2', 'q-grit-2']
                                      'lastfmtags'  ['alt country', 'jazz', 'female vocalists', 'folk', 'singer songwriter']
                                        'tag_date'  2003
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1622762377.3432539  (2021-06-04 01:19:37)
                             'size'  5236276