======================== unified (from filesystem) ========================
                                         'bitrate'  '176.348'
                                        'duration'  '120'
                                          'artist'  'The Millionaires'
                                     'text_people'  ''
                                         'release'  'Office Naps Youtube Channel'
                                           'title'  'Haunted Train '
                                           'quals'  ("['Q-HAP-3', 'Q-LOCALNESS-2', 'Q-JZFKS-2', 'Q-HHRNBTT-1', 'Q-UNU-1', "
 "'Q-OLDST-2', 'q-syn-1', 'q-bass-2', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-1', 'q-drums-3', 'q-other-3', 'q-piano-1', 'q-vocals-2', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['7soul', 'doo wop', 'country', 'soul', 'covers']"
                                     'discogstags'  "['funk / soul', 'soul']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1960'
                                        'comments'  ''
                                           'genre'  'prerock-jb-jazz-lounge or exotica or bossa'
                                             'bpm'  '91.1'
                                             'key'  '6A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Office Naps Youtube Channel'
'TBPM' (BPM (beats per minute))                     '91.1'
'TCON' (Content type, a.k.a. Genre)                 'prerock-jb-jazz-lounge or exotica or bossa'
'TDRC' (Recording time)                             '1960'
'TIT2' (Title/songname/content description)         'Haunted Train '
'TKEY' (Initial key)                                '6A'
'TPE1' (Lead performer(s)/Soloist(s))               'The Millionaires'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '2'
'TXXX:Q-LOCALNESS'                                  '2'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  ['funk / soul', 'soul']
'TXXX:lastfmtags'                                   ['7soul', 'doo wop', 'country', 'soul', 'covers']
'TXXX:other'                                        '92kbit_AAC)'
'TXXX:q-bass'                                       '2'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '2'
'TXXX:replaygain_track_gain'                        '-0.88 dB'
'TXXX:replaygain_track_peak'                        '0.294235'

========================== row from database ==========================
                                              'id'  1120259
                                            'path'  /data/Music/Bulk/00exnnpjpsprgttidm/Office Naps Youtube Channel (Ripped 05 09 16)/The Millionaires_ _Haunted Train_ (192kbit_AAC).mp3
                                         'working'  None
                                         'bitrate'  176
                                    'duration_sec'  120
                                           'genre'  prerock-jb-jazz-lounge or exotica or bossa
                                        'filesize'  2666120
                                           'mtime'  1620539008
                                   'redo_metaread'  0
                                        'rest_str'   00exnnpjpsprgttidm (Ripped 05 09 16) Millionaires_ _Haunted Train_ (192kbit_AAC) prerock jb jazz lounge or exotica or bossa
                                      'tag_artist'  The Millionaires
                                     'tag_release'  Office Naps Youtube Channel
                                       'tag_title'  Haunted Train 
                                             'bpm'  91.1
                                    'search_title'  'haunted':1 'train':2
                                   'search_artist'  'millionaires':2 'the':1
                                  'search_release'  'channel':4 'naps':2 'office':1 'youtube':3
                                     'search_rest'  '16':3,4 '192kbit':8,10 'aac':9,11 'bossa':18 'exotica':17 'haunted':6 'jazz':14 'jb':13 'lounge':15 'millionaires':5 'or':16 'prerock':12 'ripped':1,2 'train':7
                                    'search_combo'  '16':11,12 '192kbit':16,18 'aac':17,19 'bossa':26 'channel':8C 'exotica':25 'haunted':1A,14 'jazz':22 'jb':21 'lounge':23 'millionaires':4B,13 'naps':6C 'office':5C 'or':24 'prerock':20 'ripped':9,10 'the':3B 'train':2A,15 'youtube':7C
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  6A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', 'Q-LOCALNESS-2', 'q-piano-1', 'q-mixbeat-1', 'q-play-3', 'Q-OLDST-2', 'Q-UNU-1', 'Q-JZFKS-2', 'q-busy-3', 'q-drums-3', 'q-syn-1', 'q-chart-1', 'q-other-3', 'Q-HAP-3', 'q-bass-2', 'q-grit-2']
                                      'lastfmtags'  ['7soul', 'doo wop', 'country', 'soul', 'covers']
                                        'tag_date'  1960
                                     'discogstags'  ['funk / soul', 'soul']

============================== file details ==============================
                                           'mtime'  1620539007.7135322  (2021-05-09 07:43:27)
                             'size'  2666120