======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '201'
                                          'artist'  'Eels'
                                     'text_people'  ''
                                         'release'  'End Times'
                                           'title'  'In My Younger Days'
                                           'quals'  ("['Q-HAP-2', 'Q-LOCALNESS-1', 'Q-UNU-1', 'Q-OLDST-3', 'Q-JZFKS-1', "
 "'Q-HHRNBTT-1', 'q-syn-2', 'q-bass-2', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-4', 'q-drums-1', 'q-other-4', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['indie', 'alternative', 'singer songwriter', 'indie rock', 'rock']"
                                     'discogstags'  "['rock', 'acoustic', 'indie rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '2009'
                                        'comments'  ''
                                           'genre'  'ifs-songwriter-indie-rock'
                                             'bpm'  '144.645'
                                             'key'  '9B'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'End Times'
'TBPM' (BPM (beats per minute))                     '144.645'
'TCON' (Content type, a.k.a. Genre)                 'ifs-songwriter-indie-rock'
'TDRC' (Recording time)                             '2009'
'TIT2' (Title/songname/content description)         'In My Younger Days'
'TKEY' (Initial key)                                '9B'
'TPE1' (Lead performer(s)/Soloist(s))               'Eels'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  ['rock', 'acoustic', 'indie rock']
'TXXX:lastfmtags'                                   ['indie', 'alternative', 'singer songwriter', 'indie rock', 'rock']
'TXXX:q-bass'                                       '2'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '4'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '4'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '+0.62 dB'
'TXXX:replaygain_track_peak'                        '0.549005'

========================== row from database ==========================
                                              'id'  1345338
                                            'path'  /data/Music/Bulk/00poprockelectronic/Eels/Eels - End Of Time [2009-MP3][Bubanee]/03 in my younger days.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  201
                                           'genre'  ifs-songwriter-indie-rock
                                        'filesize'  4829795
                                           'mtime'  1621697392
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic Of [2009 MP3][Bubanee] 03 in my younger days ifs songwriter indie rock
                                      'tag_artist'  Eels
                                     'tag_release'  End Times
                                       'tag_title'  In My Younger Days
                                             'bpm'  144.645
                                    'search_title'  'days':4 'in':1 'my':2 'younger':3
                                   'search_artist'  'eels':1
                                  'search_release'  'end':1 'times':2
                                     'search_rest'  '00poprockelectronic':1 '2009':3,4 'bubanee':6 'days':11 'ifs':12 'in':8 'indie':14 'mp3':5 'mp3bubanee':7 'my':9 'of':2 'rock':15 'songwriter':13 'younger':10
                                    'search_combo'  '00poprockelectronic':8 '2009':10,11 'bubanee':13 'days':4A,18 'eels':5B 'end':6C 'ifs':19 'in':1A,15 'indie':21 'mp3':12 'mp3bubanee':14 'my':2A,16 'of':9 'rock':22 'songwriter':20 'times':7C 'younger':3A,17
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  9B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', '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-1', 'q-syn-2', 'q-chart-4', 'q-other-4', 'Q-HAP-2', 'q-bass-2', 'q-grit-2']
                                      'lastfmtags'  ['indie', 'alternative', 'singer songwriter', 'indie rock', 'rock']
                                        'tag_date'  2009
                                     'discogstags'  ['rock', 'acoustic', 'indie rock']

============================== file details ==============================
                                           'mtime'  1621697392.2702496  (2021-05-22 17:29:52)
                             'size'  4829795