======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '186'
                                          'artist'  'Fuzz'
                                     'text_people'  ''
                                         'release'  'Billboard Top Pop Singles of 1971'
                                           'title'  'I Love You for All Seasons'
                                           'quals'  ("['Q-JZFKS-1', 'Q-HHRNBTT-1', 'Q-LOCALNESS-1', 'Q-UNU-1', 'Q-OLDST-2', "
 "'q-syn-2', 'q-bass-2', 'q-busy-3', 'q-grit-2', 'q-play-2', 'q-chart-3', "
 "'q-drums-2', 'q-other-1', 'q-piano-1', 'q-vocals-4', 'q-mixbeat-2']")
                                      'lastfmtags'  "['garage rock', 'stoner rock', 'psychedelic rock', 'psychedelic', 'rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '45'
                                      'tracktotal'  ''
                                            'date'  '1971'
                                        'comments'  ''
                                           'genre'  'electronic-generic or radio-unsorted;set-pl-billboard'
                                             'bpm'  '145.580'
                                             'key'  '6A'
                                        'acoustid'  ''
rest: ''

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

'COMM:ID3v1 Comment:XXX'                            'Billboard'
'TALB' (Album/Movie/Show title)                     'Billboard Top Pop Singles of 1971'
'TBPM' (BPM (beats per minute))                     '145.580'
'TCON' (Content type, a.k.a. Genre)                 ['electronic-generic or radio-unsorted', 'set-pl-billboard']
'TDRC' (Recording time)                             '1971'
'TIT2' (Title/songname/content description)         'I Love You for All Seasons'
'TKEY' (Initial key)                                '6A'
'TPE1' (Lead performer(s)/Soloist(s))               'Fuzz'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TRCK' (Track number/Position in set)               '45'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['garage rock', 'stoner rock', 'psychedelic rock', 'psychedelic', 'rock']
'TXXX:q-bass'                                       '2'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '2'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '1'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+0.15 dB'
'TXXX:replaygain_track_peak'                        '0.681605'

========================== row from database ==========================
                                              'id'  1324472
                                            'path'  /data/Music/Bulk/00poprockelectronic/Billboard/Billboard Top100/1971/045 - Fuzz - I Love You for All Seasons.mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  186
                                           'genre'  electronic-generic or radio-unsorted;set-pl-billboard
                                        'filesize'  3725441
                                           'mtime'  1620384979
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic Top100 045 electronic generic radio unsorted;set pl billboard
                                      'tag_artist'  Fuzz
                                     'tag_release'  Billboard Top Pop Singles of 1971
                                       'tag_title'  I Love You for All Seasons
                                             'bpm'  145.58
                                    'search_title'  'all':5 'for':4 'i':1 'love':2 'seasons':6 'you':3
                                   'search_artist'  'fuzz':1
                                  'search_release'  '1971':6 'billboard':1 'of':5 'pop':3 'singles':4 'top':2
                                     'search_rest'  '00poprockelectronic':1 'billboard':11 'electronic':3 'generic':4 'pl':10 'radio':5 'set':7,9 'top100':2 'unsorted':6,8
                                    'search_combo'  '00poprockelectronic':14 '1971':13C 'all':5A 'billboard':8C,24 'electronic':16 'for':4A 'fuzz':7B 'generic':17 'i':1A 'love':2A 'of':12C 'pl':23 'pop':10C 'radio':18 'seasons':6A 'set':20,22 'singles':11C 'top':9C 'top100':15 'unsorted':19,21 'you':3A
                                    'tag_tracknum'  45
                                      'num_images'  0
                                             'key'  6A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-2', '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-1', 'q-bass-2', 'q-grit-2']
                                      'lastfmtags'  ['garage rock', 'stoner rock', 'psychedelic rock', 'psychedelic', 'rock']
                                        'tag_date'  1971
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620384979.1155865  (2021-05-07 12:56:19)
                             'size'  3725441