======================== unified (from filesystem) ========================
                                         'bitrate'  '134.26'
                                        'duration'  '151'
                                          'artist'  'Joe Holiday'
                                     'text_people'  ''
                                         'release'  'Office Naps Youtube Channel'
                                           'title'  'Mambo Holiday (Pt. 1) '
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'q-syn-1', 'Q-PLAY-3', 'q-bass-1', 'q-busy-3', "
 "'q-grit-1', 'Q-JZFKS-2', 'Q-OLDST-2', 'Q-PIANO-2', 'q-chart-1', 'q-drums-3', "
 "'q-other-4', 'q-vocals-1', 'Q-HHRNBTT-1', 'q-mixbeat-1', 'Q-LOCALNESS-2']")
                                      'lastfmtags'  "['jazz', 'instrumental', 'cover']"
                                     'discogstags'  "['jazz']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1960'
                                        'comments'  ''
                                           'genre'  'prerock-jb-jazz-lounge or exotica or bossa'
                                             'bpm'  '115.4'
                                             'key'  '8B'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Office Naps Youtube Channel'
'TBPM' (BPM (beats per minute))                     '115.4'
'TCON' (Content type, a.k.a. Genre)                 'prerock-jb-jazz-lounge or exotica or bossa'
'TDRC' (Recording time)                             '1960'
'TIT2' (Title/songname/content description)         'Mambo Holiday (Pt. 1) '
'TKEY' (Initial key)                                '8B'
'TPE1' (Lead performer(s)/Soloist(s))               'Joe Holiday'
'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-PIANO'                                      '2'
'TXXX:Q-PLAY'                                       '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  'jazz'
'TXXX:lastfmtags'                                   ['jazz', 'instrumental', 'cover']
'TXXX:other'                                        '28kbit_AAC)'
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '1'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '4'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '+1.89 dB'
'TXXX:replaygain_track_peak'                        '0.685962'

========================== row from database ==========================
                                              'id'  1120290
                                            'path'  /data/Music/Bulk/00exnnpjpsprgttidm/Office Naps Youtube Channel (Ripped 05 09 16)/Joe Holiday_ _Mambo Holiday (Pt. 1)_ (128kbit_AAC).mp3
                                         'working'  None
                                         'bitrate'  134
                                    'duration_sec'  151
                                           'genre'  prerock-jb-jazz-lounge or exotica or bossa
                                        'filesize'  2553082
                                           'mtime'  1620538900
                                   'redo_metaread'  0
                                        'rest_str'   00exnnpjpsprgttidm (Ripped 05 09 16) Holiday_ _Mambo 1)_ (128kbit_AAC) prerock jb jazz lounge or exotica or bossa
                                      'tag_artist'  Joe Holiday
                                     'tag_release'  Office Naps Youtube Channel
                                       'tag_title'  Mambo Holiday (Pt. 1) 
                                             'bpm'  115.4
                                    'search_title'  '1':5,6 'holiday':2 'mambo':1 'pt':3,4
                                   'search_artist'  'holiday':2 'joe':1
                                  'search_release'  'channel':4 'naps':2 'office':1 'youtube':3
                                     'search_rest'  '1':7,8 '128kbit':9,11 '16':3,4 'aac':10,12 'bossa':19 'exotica':18 'holiday':5 'jazz':15 'jb':14 'lounge':16 'mambo':6 'or':17 'prerock':13 'ripped':1,2
                                    'search_combo'  '1':5A,6A,19,20 '128kbit':21,23 '16':15,16 'aac':22,24 'bossa':31 'channel':12C 'exotica':30 'holiday':2A,8B,17 'jazz':27 'jb':26 'joe':7B 'lounge':28 'mambo':1A,18 'naps':10C 'office':9C 'or':29 'prerock':25 'pt':3A,4A 'ripped':13,14 'youtube':11C
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  8B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-2', 'q-mixbeat-1', 'Q-PIANO-2', 'Q-OLDST-2', 'Q-UNU-1', 'Q-JZFKS-2', 'q-busy-3', 'q-drums-3', 'q-syn-1', 'q-chart-1', 'q-other-4', 'Q-HAP-3', 'Q-PLAY-3', 'q-bass-1', 'q-grit-1']
                                      'lastfmtags'  ['jazz', 'instrumental', 'cover']
                                        'tag_date'  1960
                                     'discogstags'  ['jazz']

============================== file details ==============================
                                           'mtime'  1620538899.548701  (2021-05-09 07:41:39)
                             'size'  2553082