======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '119'
                                          'artist'  'Margie Pet'
                                     'text_people'  ''
                                         'release'  'Music for Maniacs'
                                           'title'  'I Feel So Good'
                                           'quals'  ("['Q-HAP-2', 'Q-JZFKS-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', 'Q-UNU-3', "
 "'Q-OLDST-3', 'q-syn-2', 'q-bass-1', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-1', 'q-drums-1', 'q-other-3', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                                     'discogstags'  "['rock & roll', 'pop', 'vocal', 'rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '2001'
                                        'comments'  ''
                                           'genre'  'electronic-experimental-oddness'
                                             'bpm'  '140.3'
                                             'key'  '6A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Music for Maniacs'
'TBPM' (BPM (beats per minute))                     '140.3'
'TCON' (Content type, a.k.a. Genre)                 'electronic-experimental-oddness'
'TDRC' (Recording time)                             '2001'
'TIT2' (Title/songname/content description)         'I Feel So Good'
'TKEY' (Initial key)                                '6A'
'TPE1' (Lead performer(s)/Soloist(s))               'Margie Pet'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '3'
'TXXX:discogstags'                                  ['rock & roll', 'pop', 'vocal', 'rock']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '1'
'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'                                     '4'
'TXXX:replaygain_track_gain'                        '+2.61 dB'
'TXXX:replaygain_track_peak'                        '0.494790'

========================== row from database ==========================
                                              'id'  648406
                                            'path'  /data/Music/Bulk/00exnnpjpsprgttidm/music for maniacs/03_-_Margie_Pet_-_I_Feel_So_Good.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  119
                                           'genre'  electronic-experimental-oddness
                                        'filesize'  2879360
                                           'mtime'  1636916202
                                   'redo_metaread'  0
                                        'rest_str'   00exnnpjpsprgttidm music maniacs 03_ _Margie_Pet_ _I_Feel_So_Good electronic experimental oddness
                                      'tag_artist'  Margie Pet
                                     'tag_release'  Music for Maniacs
                                       'tag_title'  I Feel So Good
                                             'bpm'  140.3
                                    'search_title'  'feel':2 'good':4 'i':1 'so':3
                                   'search_artist'  'margie':1 'pet':2
                                  'search_release'  'for':2 'maniacs':3 'music':1
                                     'search_rest'  '03':3 'electronic':10 'experimental':11 'feel':7 'good':9 'i':6 'maniacs':2 'margie':4 'music':1 'oddness':12 'pet':5 'so':8
                                    'search_combo'  '03':12 'electronic':19 'experimental':20 'feel':2A,16 'for':8C 'good':4A,18 'i':1A,15 'maniacs':9C,11 'margie':5B,13 'music':7C,10 'oddness':21 'pet':6B,14 'so':3A,17
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  6A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-3', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-1', 'q-syn-2', 'q-chart-1', 'q-other-3', 'Q-HAP-2', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  []
                                        'tag_date'  2001
                                     'discogstags'  ['rock & roll', 'pop', 'vocal', 'rock']

============================== file details ==============================
                                           'mtime'  1636916201.5094616  (2021-11-14 19:56:41)
                             'size'  2879360