======================== unified (from filesystem) ========================
                                         'bitrate'  '48.0'
                                        'duration'  '42'
                                          'artist'  'The New Creation'
                                     'text_people'  ''
                                         'release'  'Second Hand Psychosis'
                                           'title'  'Countdown to Revolution'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-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'  ("['                                           ', '70s', 'folk', "
 "'psychedelic', 'outsider']")
                                     'discogstags'  "['folk rock', 'rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '31'
                                      'tracktotal'  ''
                                            'date'  '1970'
                                        'comments'  ''
                                           'genre'  'rock-cppex-psychedelic'
                                             'bpm'  '144.233'
                                             'key'  '5A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Second Hand Psychosis'
'TBPM' (BPM (beats per minute))                     '144.233'
'TCON' (Content type, a.k.a. Genre)                 'rock-cppex-psychedelic'
'TDRC' (Recording time)                             '1970'
'TIT2' (Title/songname/content description)         'Countdown to Revolution'
'TKEY' (Initial key)                                '5A'
'TPE1' (Lead performer(s)/Soloist(s))               'The New Creation'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TRCK' (Track number/Position in set)               '31'
'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'                                  ['folk rock', 'rock']
'TXXX:lastfmtags'                                   ['                                           ',
 '70s',
 'folk',
 'psychedelic',
 'outsider']
'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'                        '+1.47 dB'
'TXXX:replaygain_track_peak'                        '0.732048'

========================== row from database ==========================
                                              'id'  1524206
                                            'path'  /data/Music/Bulk/00popandrock-classicprogpsy/The Trolls - Beat - second hand psychosis (60-70_s comp)/31 - new creation - countdown to revolution.mp3
                                         'working'  None
                                         'bitrate'  48
                                    'duration_sec'  42
                                           'genre'  rock-cppex-psychedelic
                                        'filesize'  253824
                                           'mtime'  1620737192
                                   'redo_metaread'  0
                                        'rest_str'   00popandrock classicprogpsy Trolls Beat second hand psychosis (60 70_s comp) 31 new creation countdown revolution rock cppex psychedelic
                                      'tag_artist'  The New Creation
                                     'tag_release'  Second Hand Psychosis
                                       'tag_title'  Countdown to Revolution
                                             'bpm'  144.233
                                    'search_title'  'countdown':1 'revolution':3 'to':2
                                   'search_artist'  'creation':3 'new':2 'the':1
                                  'search_release'  'hand':2 'psychosis':3 'second':1
                                     'search_rest'  '31':13 '60':7,8 '70':9 'beat':3 'classicprogpsy':1 'comp':11,12 'countdown':16 'cppex':19 'creation':15 'hand':5 'new':14 'psychedelic':20 'psychosis':6 'revolution':17 'rock':18 's':10 'second':4 'trolls':2
                                    'search_combo'  '31':22 '60':16,17 '70':18 'beat':12 'classicprogpsy':10 'comp':20,21 'countdown':1A,25 'cppex':28 'creation':6B,24 'hand':8C,14 'new':5B,23 'psychedelic':29 'psychosis':9C,15 'revolution':3A,26 'rock':27 's':19 'second':7C,13 'the':4B 'to':2A 'trolls':11
                                    'tag_tracknum'  31
                                      'num_images'  0
                                             'key'  5A
                                           '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'  ['                                           ', '70s', 'folk', 'psychedelic', 'outsider']
                                        'tag_date'  1970
                                     'discogstags'  ['folk rock', 'rock']

============================== file details ==============================
                                           'mtime'  1620737191.9797187  (2021-05-11 14:46:31)
                             'size'  253824