======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '77'
                                          'artist'  'Klimt 1918'
                                     'text_people'  ''
                                         'release'  'Undressed Momento'
                                           'title'  'Intro'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'Q-JZFKS-1', 'Q-HHRNBTT-1', 'Q-LOCALNESS-1', "
 "'Q-OLDST-2', 'q-syn-2', 'q-bass-1', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-1', 'q-drums-2', 'q-other-3', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['alternative rock', 'post rock', 'rock', 'progressive rock', 'italian']"
                                     'discogstags'  "['rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '1'
                                      'tracktotal'  ''
                                            'date'  '2003'
                                        'comments'  ''
                                           'genre'  'rock-cppex-progressive;set-pl-progspace'
                                             'bpm'  '94.021'
                                             'key'  '9A'
                                        'acoustid'  ''
rest: ''

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

'COMM:ID3v1 Comment:XXX'                            'Track 1'
'TALB' (Album/Movie/Show title)                     'Undressed Momento'
'TBPM' (BPM (beats per minute))                     '94.021'
'TCON' (Content type, a.k.a. Genre)                 ['rock-cppex-progressive', 'set-pl-progspace']
'TDRC' (Recording time)                             '2003'
'TIT2' (Title/songname/content description)         'Intro'
'TKEY' (Initial key)                                '9A'
'TPE1' (Lead performer(s)/Soloist(s))               'Klimt 1918'
'TRCK' (Track number/Position in set)               '1'
'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', 'post rock', 'rock', 'progressive rock', 'italian']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'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'                                     '4'
'TXXX:replaygain_track_gain'                        '+0.79 dB'
'TXXX:replaygain_track_peak'                        '0.516699'

========================== row from database ==========================
                                              'id'  1414022
                                            'path'  /data/Music/Bulk/00popandrock-classicprogpsy/Klimt 1918/2003 - Undressed Momento/01 - Intro.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  77
                                           'genre'  rock-cppex-progressive;set-pl-progspace
                                        'filesize'  3105779
                                           'mtime'  1620736203
                                   'redo_metaread'  0
                                        'rest_str'   00popandrock classicprogpsy 2003 01 rock cppex progressive;set pl progspace
                                      'tag_artist'  Klimt 1918
                                     'tag_release'  Undressed Momento
                                       'tag_title'  Intro
                                             'bpm'  94.021
                                    'search_title'  'intro':1
                                   'search_artist'  '1918':2 'klimt':1
                                  'search_release'  'momento':2 'undressed':1
                                     'search_rest'  '2003':2 'classicprogpsy':1 'cppex':4 'pl':9 'progressive':5,7 'progspace':10 'rock':3 'set':6,8
                                    'search_combo'  '1918':3B '2003':7 'classicprogpsy':6 'cppex':9 'intro':1A 'klimt':2B 'momento':5C 'pl':14 'progressive':10,12 'progspace':15 'rock':8 'set':11,13 'undressed':4C
                                    'tag_tracknum'  1
                                      'num_images'  0
                                             'key'  9A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-3', 'Q-OLDST-2', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-2', 'q-syn-2', 'q-chart-1', 'q-other-3', 'Q-HAP-3', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  ['alternative rock', 'post rock', 'rock', 'progressive rock', 'italian']
                                        'tag_date'  2003
                                     'discogstags'  ['rock']

============================== file details ==============================
                                           'mtime'  1620736202.8906999  (2021-05-11 14:30:02)
                             'size'  3105779