======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '252'
                                          'artist'  'Blondie'
                                     'text_people'  ''
                                         'release'  'Maria'
                                           'title'  'Maria [radio Edit]'
                                           'quals'  ("['Q-HAP-2', 'Q-UNU-1', 'Q-HHRNBTT-1', 'Q-LOCALNESS-1', 'Q-JZFKS-1', "
 "'Q-OLDST-3', 'q-syn-2', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-4', 'q-drums-3', 'q-other-3', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  "['80s', 'new wave', 'female vocalists', 'pop', 'rock']"
                                     'discogstags'  "['electronic', 'house', 'jungle']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '1'
                                      'tracktotal'  ''
                                            'date'  '1999'
                                        'comments'  ''
                                           'genre'  'electronic-we-new wave or post punk'
                                             'bpm'  '106.196'
                                             'key'  '11B'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Maria'
'TBPM' (BPM (beats per minute))                     '106.196'
'TCON' (Content type, a.k.a. Genre)                 'electronic-we-new wave or post punk'
'TDRC' (Recording time)                             '1999'
'TIT2' (Title/songname/content description)         'Maria [radio Edit]'
'TKEY' (Initial key)                                '11B'
'TPE1' (Lead performer(s)/Soloist(s))               'Blondie'
'TRCK' (Track number/Position in set)               '1'
'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'                                  ['electronic', 'house', 'jungle']
'TXXX:lastfmtags'                                   ['80s', 'new wave', 'female vocalists', 'pop', 'rock']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '4'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '-1.39 dB'
'TXXX:replaygain_track_peak'                        '0.419057'

========================== row from database ==========================
                                              'id'  1312280
                                            'path'  /data/Music/Bulk/00poprockelectronic/Blondie/MBZ;#Blondie;#Maria;#01;#Maria [Radio Edit].mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  252
                                           'genre'  electronic-we-new wave or post punk
                                        'filesize'  4036184
                                           'mtime'  1620567865
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic MBZ;#Blondie;#Maria;#01;#Maria [Radio electronic we new wave or post punk
                                      'tag_artist'  Blondie
                                     'tag_release'  Maria
                                       'tag_title'  Maria [radio Edit]
                                             'bpm'  106.196
                                    'search_title'  'edit':4,5 'maria':1 'radio':2,3
                                   'search_artist'  'blondie':1
                                  'search_release'  'maria':1
                                     'search_rest'  '00poprockelectronic':1 '01':5,10 'blondie':3,8 'electronic':14 'maria':4,6,9,11 'mbz':2,7 'new':16 'or':18 'post':19 'punk':20 'radio':12,13 'wave':17 'we':15
                                    'search_combo'  '00poprockelectronic':8 '01':12,17 'blondie':6B,10,15 'edit':4A,5A 'electronic':21 'maria':1A,7C,11,13,16,18 'mbz':9,14 'new':23 'or':25 'post':26 'punk':27 'radio':2A,3A,19,20 'wave':24 'we':22
                                    'tag_tracknum'  1
                                      'num_images'  0
                                             'key'  11B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-2', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-3', 'q-syn-2', 'q-chart-4', 'q-other-3', 'Q-HAP-2', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['80s', 'new wave', 'female vocalists', 'pop', 'rock']
                                        'tag_date'  1999
                                     'discogstags'  ['electronic', 'house', 'jungle']

============================== file details ==============================
                                           'mtime'  1620567864.8279643  (2021-05-09 15:44:24)
                             'size'  4036184