======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '419'
                                          'artist'  'A Quiet Monday'
                                     'text_people'  ''
                                         'release'  'Classwar Karaoke - 0017 Survey'
                                           'title'  'Nucleus'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-UNU-1', 'q-syn-2', 'q-bass-4', 'q-busy-3', "
 "'q-grit-2', 'q-play-2', 'Q-OLDST-3', 'q-chart-1', 'q-drums-3', 'q-other-2', "
 "'q-piano-1', 'q-vocals-1', 'Q-HHRNBTT-1', 'q-mixbeat-1', 'Q-LOCALNESS-1']")
                                      'lastfmtags'  "['ambient', 'electronica', 'all']"
                                     'discogstags'  "['abstract', 'electronic', 'experimental']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '02'
                                      'tracktotal'  ''
                                            'date'  '2012'
                                        'comments'  ''
                                           'genre'  'electronic-unsorted'
                                             'bpm'  '122.437'
                                             'key'  '7A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Classwar Karaoke - 0017 Survey'
'TBPM' (BPM (beats per minute))                     '122.437'
'TCON' (Content type, a.k.a. Genre)                 'electronic-unsorted'
'TCOP' (Copyright message)                          ('Creative Commons Attribution-NonCommercial-NoDerivatives (aka Music '
 'Sharing): http://creativecommons.org/licenses/by-nc-nd/3.0/')
'TDRC' (Recording time)                             '2012'
'TIT2' (Title/songname/content description)         'Nucleus'
'TKEY' (Initial key)                                '7A'
'TPE1' (Lead performer(s)/Soloist(s))               'A Quiet Monday'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TRCK' (Track number/Position in set)               '02'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  ['abstract', 'electronic', 'experimental']
'TXXX:lastfmtags'                                   ['ambient', 'electronica', 'all']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '-3.06 dB'
'TXXX:replaygain_track_peak'                        '0.705319'

========================== row from database ==========================
                                              'id'  1376551
                                            'path'  /data/Music/Bulk/00exnnpjpsprgttidm/FluiD - 2012 - classwar karaoke - 0017 survey/a quiet monday - classwar karaoke - 0017 survey - 02 - nucleus.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  419
                                           'genre'  electronic-unsorted
                                        'filesize'  16768621
                                           'mtime'  1622758896
                                   'redo_metaread'  0
                                        'rest_str'   00exnnpjpsprgttidm FluiD 2012 classwar karaoke survey quiet monday classwar karaoke survey 02 nucleus electronic unsorted
                                      'tag_artist'  A Quiet Monday
                                     'tag_release'  Classwar Karaoke - 0017 Survey
                                       'tag_title'  Nucleus
                                             'bpm'  122.437
                                    'search_title'  'nucleus':1
                                   'search_artist'  'a':1 'monday':3 'quiet':2
                                  'search_release'  'classwar':1 'karaoke':2 'survey':3
                                     'search_rest'  '2012':2 'classwar':3 'd':12 'electronic':9 'flui':11 'fluid':1 'karaoke':4 'monday':7 'nucleus':8 'quiet':6 'survey':5 'unsorted':10
                                    'search_combo'  '2012':9 'a':2B 'classwar':5C,10 'd':19 'electronic':16 'flui':18 'fluid':8 'karaoke':6C,11 'monday':4B,14 'nucleus':1A,15 'quiet':3B,13 'survey':7C,12 'unsorted':17
                                    'tag_tracknum'  2
                                      'num_images'  0
                                             'key'  7A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-3', 'q-syn-2', 'q-chart-1', 'q-other-2', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['ambient', 'electronica', 'all']
                                        'tag_date'  2012
                                     'discogstags'  ['abstract', 'electronic', 'experimental']

============================== file details ==============================
                                           'mtime'  1622758896.0896678  (2021-06-04 00:21:36)
                             'size'  16768621